Is Next.js Really Faster Than WordPress?

If you’ve been running a WordPress site for a while, you’ve probably heard the pitch: “Switch to Next.js and your site will fly.” Maybe from a developer, maybe from a Reddit thread, maybe from someone trying to sell you a rebuild.

The truth is more nuanced — and worth understanding before you make any decisions.

This article isn’t written for developers. It’s written for business owners who care about one thing: whether their website is actually helping or hurting them on Google.

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Why Performance Matters More Than It Used To

Google has been clear about this since 2021: page speed is a ranking factor. Not the only one, but a real one.

More importantly, speed affects what happens after someone clicks your link. If your page takes four seconds to load on mobile, a big chunk of visitors leave before they see a single word. That’s traffic you paid for — whether through ads, SEO, or years of building a reputation — walking out the door immediately.

Core Web Vitals are the specific metrics Google uses to measure this:

• LCP (Largest Contentful Paint) — how fast the main content appears
• FID / INP — how quickly the page responds to a tap or click
• CLS — whether the page jumps around while loading

A score below 50 on Google’s PageSpeed Insights is a problem. A score above 90 is where you want to be.

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What’s Actually Slowing Down WordPress Sites

WordPress itself isn’t slow. A clean, well-configured WordPress site can score 90+ on PageSpeed without any heroics.

The problem is what usually gets added on top of it.

Plugins. The average WordPress site has 20–30 plugins installed. Many of them load their own CSS and JavaScript on every page — including pages where they’re not even used. Each of those files is an extra request, an extra delay.

Page builders. Elementor, Divi, WPBakery — these tools are convenient, but they generate bloated HTML and load a significant amount of extra code. A page built with Elementor often loads 3–5× more data than the same page built with clean custom code.

Unoptimized images. WordPress historically served whatever image file you uploaded. If that was a 3MB JPEG, visitors on mobile downloaded a 3MB JPEG. Modern WordPress does better with lazy loading and WebP support, but only if configured correctly.

Shared hosting. Many small business sites sit on $5–$10/month shared hosting where the server itself is the bottleneck. No amount of optimization fully compensates for an underpowered server.

None of these problems are unfixable within WordPress. But they do require deliberate work.

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What Next.js Does Differently

Next.js is a framework built on React, a JavaScript library developed by Facebook. Unlike WordPress — which builds pages on the server when someone visits them — Next.js can generate pages in advance and serve them as static files.

This has a few practical consequences:

Pages load faster. Static files can be served from a CDN (content delivery network) located close to the visitor. There’s no database query, no PHP execution, no waiting for the server to assemble the page. The file is just… there.

JavaScript is handled smarter. Next.js only loads the code each page actually needs, rather than dumping everything into one large file. This is called code splitting, and it means faster initial load times.

Images are optimized automatically. Next.js has a built-in image component that resizes images, converts them to modern formats like WebP, and only loads them when they’re about to become visible on screen.

Core Web Vitals scores are easier to achieve. Not guaranteed — a poorly built Next.js site can still score badly — but the defaults work in your favor rather than against you.

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The Honest Comparison

Here’s where many articles go wrong: they compare a poorly optimized WordPress site against a well-built Next.js site and declare Next.js the winner. That’s not a fair comparison.

A well-optimized WordPress site — no unnecessary plugins, custom theme or minimal block-based theme, good hosting, proper caching — can match or come close to Next.js performance for most use cases.

The difference becomes significant when:

• Your site relies heavily on page builder plugins that can’t be removed
• You have dozens of plugins that conflict with each other and slow things down
• Your content team needs speed, but the technical debt has piled up too high to fix cleanly
• You’re serving a large volume of traffic and need edge-level performance

In those cases, migrating to Next.js with WordPress as a headless CMS (meaning WordPress manages content in the background, Next.js handles the front end) can produce dramatically better scores — and a noticeably faster experience for visitors.

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What “Headless WordPress” Actually Means

You may have seen this term. It sounds complicated, but the concept is simple.

In a standard WordPress setup, WordPress does everything: stores your content, generates the pages, and sends them to visitors.

In a headless setup, WordPress still stores and manages your content — your team still logs in and edits posts the same way. But instead of WordPress generating the pages, Next.js does. WordPress becomes a content backend that no one but your team ever touches directly.

The benefit: you keep the familiar WordPress editing experience while getting the performance benefits of a modern front end.

The tradeoff: it’s a more complex setup, and it costs more to build properly.

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So Should You Switch?

Probably not — unless you’re experiencing specific problems that can’t be solved within WordPress.

Stay with WordPress if:

• Your site scores above 75 on mobile PageSpeed and you’re not seeing bounce rate problems
• Your content team is comfortable with the current editing workflow
• Your business doesn’t depend on millisecond performance (e-commerce conversion rates are more sensitive to this than service business inquiry pages)
• You’re not hitting the ceiling of what WordPress optimization can achieve

Consider Next.js if:

• Your mobile PageSpeed score is consistently below 50 despite optimization attempts
• You’re running a large e-commerce store where every second of load time directly affects sales
• Your WordPress site has accumulated so many plugins and workarounds that it’s become difficult to maintain
• You’re planning a full redesign anyway — that’s the right time to evaluate the stack

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What This Means Practically

Performance improvements don’t have to mean a complete platform change. Before considering a migration, it’s worth doing a proper audit of what’s actually causing the slowdowns — it’s often a handful of specific issues that are very fixable within WordPress.

If you’re curious where your site stands, a PageSpeed audit will show you exactly what’s happening and what the impact is. From there, the path forward — whether that’s WordPress optimization or a migration to Next.js — becomes a lot clearer.

I offer both: WordPress performance optimization for sites that need cleanup, and full Next.js migrations for sites where the platform itself has become the limitation. If you’d like to know which applies to your situation, take a look at the migration service or get in touch directly.

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Vlad Lykhenko is a web developer specializing in WordPress and Next.js, working with businesses in the US and Europe since 2016.