Your WordPress site is probably slower than a Wix site: 8 fixes that close the gap
Oct 08, 2026
Here is a finding that irritates almost everyone who hears it. On mobile, 45% of WordPress sites pass Google's Core Web Vitals. For Wix, the figure is 74%. For Duda it is 85%.
Those numbers come from the 2025 Web Almanac CMS chapter, measured on real Chrome users rather than in a lab. The platform that professionals choose, that runs most of the web, and that gives you complete control over every line of output is being beaten on measured speed by the platforms those same professionals tend to dismiss.
The explanation is not that Wix engineers are better. It is that Wix will not let you do the things that make a site slow, and WordPress will let you do all of them. That freedom is the entire value proposition, and it is also the bill.
One caveat matters before anyone screenshots this. WordPress sites run on wildly varying hosting, built by everyone from agencies to a founder's nephew, with whatever plugins accumulated over eight years. Wix sites run on Wix. The comparison is not like for like, and that is exactly the point: the platform is not what makes your site slow, the accumulated decisions are, and WordPress permits far more of them.
A well-built WordPress site on good hosting beats most of what is on this list. A neglected one is dramatically worse than the 45% average suggests. You cannot know which you have without looking.
Open the network tab on your slowest page and attribute every request to something. Plugins that load their assets site-wide when they are used on one page are the usual offender, as are page builders that ship a framework to render a two-column layout. Measure the cost per plugin, then decide which ones have earned their place.
Your largest above-the-fold element should be eagerly loaded, preloaded, served in a modern format at display size, and never deferred. Add explicit width and height so the layout stops shifting. Give your web font a fallback so text appears immediately rather than waiting.
Get full-page caching working, verify it with response headers rather than trusting the plugin dashboard, and exclude only what genuinely must be dynamic such as the cart and logged-in sessions. Put a CDN in front for static assets. These two changes alone move most underperforming WordPress sites into a different bracket.
Each was added by someone with a reason and no sense of the aggregate. List every third-party domain loading on your site, put a name beside each one, delete what nobody claims, and load the survivors after your content rather than before it. This costs nothing but a conversation and often recovers more time than a hosting upgrade.
A query monitor on your slowest template usually finds the culprit within minutes. Upgrading hosting to outrun a bad query is the most expensive way to not fix a problem.
For some businesses, honestly, nothing worth the maintenance. A hosted builder would be faster, more accessible and less work. For others, the flexibility is the whole reason the site exists: custom post types, integrations with internal systems, a membership area, an ecommerce catalogue with unusual rules, content models nobody else's platform supports. That flexibility is real and worth real money. It just needs to be a decision rather than a default.
Set a budget you can hold, such as a total JavaScript cap or an LCP target, then check it automatically when changes ship and block the ones that break it. A site that stays fast between audits is worth more than a site that was fast on the day of the audit.
An hour of work, no budget, and at the end you have the only thing worth arguing from: your own numbers.
Those numbers come from the 2025 Web Almanac CMS chapter, measured on real Chrome users rather than in a lab. The platform that professionals choose, that runs most of the web, and that gives you complete control over every line of output is being beaten on measured speed by the platforms those same professionals tend to dismiss.
The explanation is not that Wix engineers are better. It is that Wix will not let you do the things that make a site slow, and WordPress will let you do all of them. That freedom is the entire value proposition, and it is also the bill.
What the measurements say
WordPress passes Core Web Vitals on 45% of mobile sites. Wix manages 74%.
From the Web Almanac CMS data. WordPress improved around 4 points year on year, while Wix gained substantially more.WordPress fails Largest Contentful Paint more than it passes it.
Only 53% of WordPress sites achieve a good LCP on mobile, against 81% for Wix. LCP is usually a hero image or a headline waiting on a font, which is a build decision rather than a platform limitation.Over half the web now runs on a CMS, and WordPress is roughly 64% of that.
CMS adoption reached 54% of sites on mobile, up from 43% in 2021. Shopify entered the category at around 7.3%, Wix at roughly 5.2%.The accessibility picture points the same way.
WebAIM's 2026 analysis of the top million home pages found WordPress pages averaging 52.8 detected errors, against 33.0 for Squarespace and 33.3 for Wix.There is no population-level evidence that headless is faster.
The Almanac defines headless and composable architectures and reports no adoption or performance figures for them, because the data is not there at scale. Anyone citing a headless speed benchmark is citing a case study, not a measurement of the web.
One caveat matters before anyone screenshots this. WordPress sites run on wildly varying hosting, built by everyone from agencies to a founder's nephew, with whatever plugins accumulated over eight years. Wix sites run on Wix. The comparison is not like for like, and that is exactly the point: the platform is not what makes your site slow, the accumulated decisions are, and WordPress permits far more of them.
1. Get your own field data before you believe anything
Platform averages are interesting and irrelevant to your situation. Open PageSpeed Insights and read the real-user section at the top, which reflects what actual visitors on actual phones experienced.A well-built WordPress site on good hosting beats most of what is on this list. A neglected one is dramatically worse than the 45% average suggests. You cannot know which you have without looking.
2. Audit plugins by what they load, not how many there are
The advice to use fewer plugins is almost right and slightly useless. Twenty well-built plugins that load nothing on the front end cost you very little. Three badly built ones that each enqueue jQuery, a stylesheet and a font on every page will wreck your scores.Open the network tab on your slowest page and attribute every request to something. Plugins that load their assets site-wide when they are used on one page are the usual offender, as are page builders that ship a framework to render a two-column layout. Measure the cost per plugin, then decide which ones have earned their place.
3. Stop lazy-loading your hero image
This is the single most common cause of a failing LCP on WordPress, and it is usually caused by a well-meaning optimisation plugin applying lazy loading to everything including the image at the top of the page.Your largest above-the-fold element should be eagerly loaded, preloaded, served in a modern format at display size, and never deferred. Add explicit width and height so the layout stops shifting. Give your web font a fallback so text appears immediately rather than waiting.
4. Cache properly and put a CDN in front
A page that rebuilds itself from the database on every request will never be fast, however good the hosting is. Page caching turns that into a file served in milliseconds.Get full-page caching working, verify it with response headers rather than trusting the plugin dashboard, and exclude only what genuinely must be dynamic such as the cart and logged-in sessions. Put a CDN in front for static assets. These two changes alone move most underperforming WordPress sites into a different bracket.
5. Govern the scripts nobody owns
The tag manager, the chat widget, the heatmap tool, the two analytics platforms, the consent banner, the abandoned testing snippet from a campaign in 2024.Each was added by someone with a reason and no sense of the aggregate. List every third-party domain loading on your site, put a name beside each one, delete what nobody claims, and load the survivors after your content rather than before it. This costs nothing but a conversation and often recovers more time than a hosting upgrade.
6. Look at the database before you blame the server
WordPress performance problems at the server level are frequently query problems wearing a hosting costume. Post meta tables bloated by plugins that never clean up, autoloaded options holding megabytes of transients, uncached queries running on every page load.A query monitor on your slowest template usually finds the culprit within minutes. Upgrading hosting to outrun a bad query is the most expensive way to not fix a problem.
7. Decide whether you need the flexibility you are paying for
Here is the uncomfortable question most agencies will not ask you. If your site is twelve pages of marketing content, a blog and a contact form, and nobody on your team has touched a template in two years, what is the open platform buying you?For some businesses, honestly, nothing worth the maintenance. A hosted builder would be faster, more accessible and less work. For others, the flexibility is the whole reason the site exists: custom post types, integrations with internal systems, a membership area, an ecommerce catalogue with unusual rules, content models nobody else's platform supports. That flexibility is real and worth real money. It just needs to be a decision rather than a default.
8. Put the standard in the deploy, not in a document
Performance work that is not enforced gets undone within a quarter. A plugin gets added, a video lands on the homepage, a tracking script arrives for a campaign.Set a budget you can hold, such as a total JavaScript cap or an LCP target, then check it automatically when changes ship and block the ones that break it. A site that stays fast between audits is worth more than a site that was fast on the day of the audit.
What the builders actually got right
It would be convenient to explain away these numbers, and the explanations are mostly true. Wix controls the hosting, the image pipeline, the CDN and the rendering path. Nobody installs a page builder on top of a page builder. There is no eight-year accumulation of plugins from developers who stopped maintaining them. The comparison flatters the closed platforms because closed platforms get to prevent the mistakes.
That is not a defence, though. It is a description of a trade the industry made and then stopped examining. We chose maximum flexibility, which means maximum ways to get it wrong, and then largely declined to build the discipline that trade requires. The builders did the unglamorous work of constraining their users, and their users got faster sites without knowing why.
The useful conclusion is not that WordPress is bad. It runs most of the web because it is genuinely good at something the hosted platforms cannot offer: you own it, you can extend it in any direction, and no product decision made in someone else's boardroom can break your business model overnight. For anyone whose site is load-bearing, that matters enormously.
What follows from the data is narrower and harder. If you are going to run an open platform, you have to accept the operating cost that comes with it: measuring real user performance, owning what loads, and enforcing a standard in the pipeline rather than in a style guide. Skip that, and you are paying for flexibility you are not using while losing on the metrics a closed platform would have handled for you.
Pick either. Just pick on purpose.
Three tests to run this week
Check your homepage and your two highest-traffic pages in PageSpeed Insights.
Read only the real-user section. Compare against the 45% WordPress average and see which side of it you sit on.Count the third-party domains loading on your site.
DevTools, network tab, sort by domain. Write down everything that is not yours and ask who still needs it.Deactivate your plugins one at a time on a staging copy and re-measure.
Tedious, free, and the fastest way to find the one costing you a second and a half.
An hour of work, no budget, and at the end you have the only thing worth arguing from: your own numbers.
