Assessing speed overhead with *broken* P3 Plugin Performance Profiler plugin.

WordPress Mobile Speed

Updated: January 2020

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WordPress works fine. But you need plugins to add extra features and functionality. Without plugins, WordPress is not-worth-as-much. Plugins give you control over website functions and performance without writing any code. Choosing the right plugins play a big role in your mobile speed success.

It seems as simple as searching for the most popular plugins. Then installing and activating them on your website. The result: an instant functionality upgrade without needing technical knowledge.

The problem is most popular plugins are slow loading. They bog down your site. Often globally, meaning slowing every single page and post. We call that site drag. Other plugins are more forgiving. They don’t suffer from site drag. Instead, they load only where used – or where there’s a shortcode installed. How can you know if a plugin causes site drag? Experimentation. This undocumented gotcha isn’t in files.

The plugin directory is one of WordPress’ great assets. It provides over 53,000 applications extending WordPress. It’s also completely open and free. Any author can contribute. Anyone can download. The plugin auditing process and security analysis are sometimes flaky. Bad plugins happen.

Many plugins have identical functions – but they’re not built the same. Some hog resources. Others are fine quality. You can solve about any WordPress problem with a plugin – or a plugin combination. We do research and experimentation to discover plugins helping mobile WordPress speed. We appreciate alternatives to bloated popular plugins. used to place a label on plugins not updated in over 2 years. Now they indicate how many update version have been missed instead. This staleness warning may mean the plugin won’t work – or worst case – could break your site. Often, we find old plugins work great. Especially for speed. Even when they aren’t updated for years.

This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

This shelf-life warning, above, scares people from unrealized opportunities. So we still test obsolete plugins. There are many compatible-and-clean 8- or 10-year-old plugins. There are always risks with even the biggest and best – and most popular. These unpredictable gambles include plugins with millions of active installs and recent updates. Even WordPress or Yoast stubs it’s toe. It happens to the peerless.

The Plugin Review team takes down a plugin if it’s becomes vulnerable. But they don’t always notify users when this happens – or tell us to remove a bad plugin. We know this from sad experience.

One obsolete plugin we use often is P3 (Plugin Performance Profiler). As implied, this plugin creates a profile of the speed performance of your plugins. It’s maintained by GoDaddy, one of the biggest hosting providers in the world. But it’s 3-years stale – abandoned? It measures load-time impact expressed in seconds for every plugin you have activated. It helps narrow down plugins causing potential speed issues. P3 doesn’t work with newer PHP version 7+. You need to dial back PHP in your hosts Cpanel to version 5.6.

P3 (Plugin Performance Profiler)
Active installs: 90,000+
Zip file size: 183k

Description: See which plugins are slowing down your site. This plugin creates a performance report for your site.

At this point, we smile. Over 90,000 sites made a bad assumption. They left this plugin active in the name of speed improvement. Ironically, the plugin slows every page and post by 12.7 milliseconds – even when sitting there. Oops!

WordPress plugins are PHP code. Various blogs and forums claim PHPv7 breaks the P3 plugin. The only plugin it tests is then itself. Our cheap, shared hosting is a techno-laggard (paradoxically, GoDaddy). They can still use PHPv5.4 as the default. Is that why they haven’t updated the plugin yet? For our speed demonstration, this may be helpful. But PHPv7 claims to make WordPress load so much faster – around a third the original v5.4 load time. Super fast. In theory, a 2-second page might load in 660 milliseconds. Beautiful! Many hosts have already adopted PHPv7. GoDaddy finally did mid-2017. We moved the version up a notch to version 7.1 in Cpanel on GoDaddy – a potential small speed boost. But it never materialized.

P3 (Plugin Performance Profiler) causes 12.7 milliseconds of site drag. So we recalculate the results without this number messing things up. After testing, don’t leave it installed. At least, disable it. But we always remove it.

There are attempts to prove P3 plugin doesn’t work well – or that it’s results are meaningless. Surprise! We agree. What’s important are the relative results. Not the absolute numbers generated. It’s ranking the worst-offending plugin to the least – with values in seconds. Data is strangely presented in alphabetical order, not in milliseconds. We sort in a spreadsheet. But there’s intuitive data to analyze and we appreciate it. Some say the results are ±30 percent off. Not from our experience. There’s no way to prove accuracy. We don’t care. Our gut says the ranking is correct enough.

There are articles about purported P3 alternatives and lookalikes. We’ve examined them. None give the speed ranking information we desire. We hope GoDaddy creates a revised edition or someone else adopts this plugin. It’s needed for speed assessments. P3 shows information not represented in any known speed report we’ve found. It’s not crippled because we’ve found workarounds for it’s shortcomings (dialing back PHP).

Let’s look at some P3 results for which loads in under 1 second. We were using the free theme Magazeen-Lite at the time of this test (active installs: 400+, Zip download: 432k). It’s load time is 37 milliseconds according to P3. Fast! We selected this bare-bones theme because it’s package size was small and light. NOTE: We’re now using the Twenty-seventeen default theme. Load time is around 20 milliseconds.

We have: 56 free WordPress plugins. What?!

That’s right. 56 are active. 4 are inactive. P3 says they all load in 396 milliseconds. Good enough. We suspect they load faster than that. But as we’ve said; it’s plugin rank that’s important for sorting.

The inactive plugins include:

  • Broken Link Checker (which we run quarterly).
  • UpdraftPlus Backup/Restore (set to run automatically once per week).
  • Replace Image (enabled as needed).
  • Optimize Database after Deleting Revisions (we activate and run once monthly for cleaning).

Most of our inactive plugins are “resource intensive.” That means they hog database and RAM on the host server. If they all were running at once, our generous hosting provider would – with total lack of courtesy – shutdown our site. Our resource overages affect our other 23 shared-host neighbor’s speed. Can’t upset the server neighbors! NOTE: We were finally forced to buy more resources by GoDaddy for RAM overruns.

After installing iThemes Security plugin, we got a GoDaddy email notification. It said our hosting account exceeded its resource limits. We dumped the plugin. Read More.

A few other speed tidbits: Worth-The-Read plugin used to be set active only on posts, not pages. It’s our third heaviest plugin at 39 milliseconds. That’s actually pretty light – but we’re picky. How did we do that? Selective plugin activation. Read more here. [Note: we got rid of this plug at a later date.]

Our heaviest plugin is SS Downloads. We activated this plugin only on “download posts.” There are about 7 or 8 posts with this feature. It has a 120 millisecond load. It’s 30 percent of the total plugin weight. We found selective activation conflicted with the Autoptimize minification plugin. Downloads then produced a 404 error. We tested with another minification plugin substitute, Better WP Minify. The same error occurred. Minification was more important to speed than selective activation of SS Download. That isn’t always the case. But it was this time. Minification often is tricky and nonessential. If we deselected minification on the download posts, it broke the site – a catch-22.

In the end, we deleted the SS Downloads plugin. (It didn’t work with PHP 7+). And we didn’t install a minification plugin.

Pareto principle is still alive! 10 of our heaviest plugins contribute to 80 percent of the cumulative weight (see column 3. The red text indicates the 80 percent cutoff). Roughly 80 percent of the effects come from 20 percent of the causes. In this case, 80 percent of the slowness comes from 20 percent of our “red-heaviest” plugin choices. These slower plugins needing the most scrutiny.

Easy Forms for MailChimp plugin is number four rank at 26.5 milliseconds. The solution: don’t use it on every sidebar. We place a sidebar 3.5k PNG image linking to a signup page. Then we only affect one page. This we sometimes refer to as offloading. But we aren’t offloading to another site or server, just to another page. Update: We now let MailChimp completely handle the signup on their site instead of bogging down ours with their script. They host our designed signup page. So we no longer do onsite page offloading. We do server offloading to MailChimp. Signup page example below:

Offloading MailChimp signup to their server instead of loading PagePipe down.

Here’s the P3 ranking results:

"SS Downloads"120.5030.47%30.47%
"Easy Digital Downloads"54.3013.73%44.20%
"Worth The Read"39.209.91%54.11%
"Easy Forms for MailChimp"26.506.70%60.81%
"WordPress 23 Related Posts Plugin"21.705.49%66.30%
"WordPress Popular Posts"19.704.98%71.28%
"WP Counter"12.503.16%74.44%
"Display Widgets"9.902.50%76.94%
"Simple Drop Cap"7.001.77%80.96%
WP Experiments Free6.801.72%82.68%
Block Bad Queries (BBQ)6.001.52%84.20%
WP Super Simple Speed6.001.52%85.71%
Cache Enabler5.601.42%87.13%
Title Remover3.200.81%87.94%
WP Editor Widget3.200.81%88.75%
Pro Related Post Widget3.100.78%89.53%
Add Widget After Content2.900.73%90.27%
Brute Force Login Protection2.700.68%91.68%
Disable Emojis2.500.63%92.31%
Email Address Encoder1.900.48%93.43%
Complete Analytics Optimization Suite (CAOS)1.900.48%93.91%
Perfect Pullquotes1.900.48%94.39%
mPress Image Refresh1.800.46%94.84%
Disable Comments1.700.43%95.27%
Plugin Logic Rules1.600.40%95.68%
Beacon Plugin1.500.38%96.06%
Change Table Prefix1.500.38%96.43%
Lazy Load XT1.400.35%96.79%
HW Image Widget1.200.30%97.09%
Simple Wp Sitemap1.200.30%97.40%
Far Future Expiry Header0.900.23%97.62%
Query Strings Remover0.900.23%97.85%
Ajax Heartbeat Tool0.800.20%98.05%
WP Content Copy Protection0.800.20%98.26%
Hide Featured Image0.600.15%98.41%
Remove Google Fonts References0.600.15%98.56%
Rocket Lazy Load0.600.15%98.71%
Shortcode For Current Date0.600.15%98.86%
WEN Responsive Columns0.600.15%99.01%
WP jQuery Plus0.600.15%99.17%
WP Media Size0.600.15%99.32%
WP Noframenoclickjacking0.600.15%99.47%
Current Year and Copyright Shortcodes0.500.13%99.60%
WP Author Date and Meta Remover0.500.13%99.72%
Easy Table0.300.08%99.80%
Simple Back To Top0.300.08%99.87%
Admin Post Navigation0.200.05%99.92%
Plugin Logic0.200.05%99.97%
One-Click Child Theme0.100.03%100.00%
Total395.50 Pingdom results:
340 milliseconds. 10 requests. 108k page weight.

  • Cheap, shared, magnetic GoDaddy hosting.
  • No paid or free CDN – or server caching.
  • Old PHP version:  5.6.
  • No paid plugins or themes. You can do it, too!

The only plugin we’d consider dumping – if we were under duress – is WP Counter (rank: 7, speed: 13 milliseconds). But it makes us feel good and crazy about our work. We can view some simple visitor stats in our dashboard. Look! There you are – visiting us!

PS: Think we’re cheating with Home page numbers. OK. Maybe. This article’s time – curious? Here’s the speed numbers: Performance grade: A 95, Load time: 323 ms, Faster than 99 % of tested sites, Page size: 222.8k, Requests: 18, Tested from San Jose by Pingdom.

We decided to run a test on This produces a Home-page worst-case scenario (950 milliseconds). Pingdom being best-case. We discovered a new feature for optimizing images. See the little yellow badge that says, “New!”


That link opens up a new window at: Using this new image optimization tool, we reduced page weight by 10 percent. Axing another 10k by replacing 4 images. That makes no measurable difference in test speed. But it reduces the bandwidth consumption on mobile devices. You saved your users a little more money for remote connection fees. Our Home page weight is now 108k.

Note: You can keep running the Cloudinary optimizer tool and never get an “A” rating. Always a “B.” In the repetitive process, you’ll completely ruin your images. This is called “overprocessing.”

It’s not the quantity of plugins – it’s the quality.

Thanks for tolerating our shameless and pretentious display of affordable, mobile speed.

Is this Home page beautiful?

No. It’s fast. It focuses on usability. Site goals are the foundation for decision making. We’ll improve branding and expressive aesthetics later. That costs money – and always slows down the page. The page needs to prove itself with results first. Then we’ll formalize the graphics. Or maybe we’ll leave it “as-is.”

The above video number 1 demonstrates how to extract P3 data by rolling back PHP 7.1 to PHP 5.6 or 5.4 (5 minutes, 5 seconds). The transcript is below:


Are delinquent plugin slowing your site speed?

Too many activated plugin slowing your site is a speed myth. The number of plugins isn’t important. It’s not the quantity, but quality that affects speed. Your site can have over 80 plugins – and still load in under 2 seconds. The WordPress average number of active plugins is 25 per website.

Another web speed myth is that popular or paid plugins are the best. It’s often the opposite. Popular plugins usually slow down sites most. Testing reveals the truth.

You can deactivate all plugins and then retest your site speed. If the site loads faster, you know there’s a problem with one or more plugins.

This tedious method then requires activating plugins one at a time for problem discovery. Repeated speed tests are required consuming time and energy.

An alternative method is using the free P3 Plugin Performance Profiler plugin to evaluate plugin load time in milliseconds . This older plugin only works using server-language PHP 5.6. You need to rollback PHP to version 5.6 from newer versions – for example – PHP 7.1.

The P3 Plugin is a more intelligent way to track down resource hogging plugins.

Our goal is ranking the slowest plugins consuming 80 percent of plugin overhead.

This Pareto principle – or 80/20 rule – helps identify the sweet spot for balancing functionality and user experience with the fastest load time.

This technique is also known as value analysis. Slow plugins then are  selectively activated – or substituted with faster alternatives – or eliminated.

Note: Many managed WordPress hosts, such as WP Engine, do not allow site owners C-panel access.

This video tutorial demonstrates a workaround to extract P3 plugin data for ranking individual plugin overhead. This is our method of quantifying performance optimization.

Shown here is GoDaddy  C-panel access. This feature is included with low-cost Linux hosting.

Scroll down to the software section.

Click the select PHP version link.

That opens an area to switch PHP options.

Here it’s currently set to version 7.1.

Roll back the version with the drop down menu to version 5.6. Click the “Set to current” button.

Version 5.6 is the required for the P3 Plugin Performance Profiler by GoDaddy. P3 is available for free installation from the WordPress plugin directory. It doesn’t run on newer PHP versions.

On the site we’re testing, there are 69 active plugins.

We’ll determine which ones cause the most site drag using the Pareto Principle or 80/20 rule. That is where 80 percent of consequences come from 20 percent of the causes.

Go to the P3 plugin in the WordPress dashboard and click the “Scan Now” text link. Then press the “Start Scan” and “Auto Scan”  buttons. Scanning takes about 25 seconds to complete.

When presented, click the “View Results” button.

The P3 plugin produces absurd pie charts representing qualitative results. These displays aren’t very helpful. We want quantified data for benchmark comparisons of potential speed savings.

Click the “Email these result” text link below the pie chart.

A small window pops open labeled Email Report. We’ve never had any success emailing plugin results to ourselves or others.

Instead, with your cursor over the “results” text box, right click and select “Inspect Element” using the Firefox browser. Or use the equivalent function on another browser.

This opens a developer tools window. The code of interest, labeled text area, is highlighted in dark blue. Click in that area. Then double click the code and you’ll see a small format change. The code is still highlighted. Do a keyboard [control-C] and copy this code.

Paste the raw code [control-V] into a standalone text editor. Name and save the file.

Close the email windows.

Deactivate P3.

Note: Leaving it activated slows your site. Leaving it installed for later reactivation has no speed consequence.

Go to your C-panel and restore the PHP setting to version 7.1.

In the next video, we analyze the saved data with a spreadsheet program.

Massaging the P3 plugin data with a text editor and spreadsheet. No vocal or sound track (7 minutes, 21 seconds).

NOTES about video 2

When the final sorted results are shown notice which plugins are the heaviest.

#1 – Yoast SEO plugin – that load time has doubled since this test. We say get rid of that slow plugin.

All the heaviest plugins can be substituted of eliminated. Notice WP Rocket is one of the heavier ones. The irony. A speed plugin. Also, WP Disable another speed plugin causes global site drag. Avoid these plugins.

Other Related Resources

If you’re new here, start with our best primer speed articles.

If you’re ready to give your WordPress site wings, here are powerful tools to speed up your site.

Learn how the most popular plugins and ideas waste your time – and hurt web speed. Includes important tips for mobile speed without coding.

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