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Why Your WordPress Site Is Slow (And How to Fix It)

Page speed is a conversion killer. Here are the most common causes of slow WordPress sites and the exact fixes we apply on every project.

Feb 15, 2026
5 min read
WordPress

The Problem With Most WordPress Sites

Out of the box, WordPress is not a fast platform. Between bloated themes, unoptimised plugins, and oversized images, most sites we inherit score below 50 on PageSpeed Insights.

The 6 Most Common Causes

1. Unoptimised Images

Images are typically 60-80% of a page total weight. Convert everything to WebP and serve images at the correct display dimensions.

2. Too Many Plugins

Every plugin adds HTTP requests, database queries, and JavaScript/CSS to your page. Audit ruthlessly.

3. No Caching Layer

A simple object cache + full-page cache (WP Rocket or LiteSpeed Cache) can cut TTFB by 80%.

4. Cheap Shared Hosting

Move to managed WordPress hosting. The performance difference is night and day.

5. Render-Blocking JavaScript and CSS

Defer non-critical scripts and inline critical CSS above the fold.

6. No CDN

Cloudflare free tier solves this immediately.

What We Do on Every Build

  • All images converted to WebP and lazy-loaded
  • WP Rocket or LiteSpeed Cache configured
  • Cloudflare CDN activated
  • All render-blocking resources deferred
  • Database optimised and post revisions capped
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