Page speed affects both how visitors experience your site and how Google ranks it. Most slow WordPress sites share the same handful of causes — and the same handful of fixes.
1. Choose fast hosting
No amount of optimisation fully compensates for a slow server. NVMe SSD storage and a data centre close to your audience make a bigger difference than most plugin settings.
2. Install a caching plugin
Caching stores a ready-made version of each page so WordPress doesn't rebuild it from the database on every single visit. This is usually the single biggest speed win available.
3. Compress your images
Large, uncompressed photos are the most common cause of slow WordPress sites. Resize images before uploading and run them through an optimisation plugin.
4. Use a lightweight theme
Heavy, feature-packed themes load extra CSS and JavaScript you may never use. A simpler, well-coded theme is almost always faster.
5. Limit your plugin count
Each active plugin adds its own code to every page load. Deactivate and delete anything you installed once and forgot about.
6. Enable a content delivery network (CDN)
A CDN serves your static files — images, CSS, JavaScript — from servers closer to each visitor, which noticeably helps mobile users outside your host's data centre.
7. Clean up your database periodically
WordPress quietly accumulates post revisions, spam comments, and transient data over time. A plugin like WP-Optimize can clear this out safely.
Key takeaway: Run your site through PageSpeed Insights or GTmetrix before and after each change — it's the only way to know whether a fix actually helped.