The WordPress performance checklist that actually works

Most WordPress speed guides are bloated with plugin recommendations and theme micro-optimizations. The reality is that a small number of changes account for most of the gain. Here's the short list, in order of typical impact.

1. Use a host with a real cache

Hosts running LiteSpeed (Hostinger, GreenGeeks, FastComet) or a purpose-built caching layer (WPX, Kinsta-class managed hosts) are dramatically faster than vanilla Apache with no host-level cache. This is usually a bigger win than any plugin you can install.

2. Pick a fast theme

Themes ship with their own bloat. Block-based themes like Twenty Twenty-Four or lightweight options like GeneratePress and Kadence consistently score better in Core Web Vitals than feature-heavy multipurpose themes.

3. Optimize images at upload

Use a plugin that converts to WebP or AVIF automatically and resizes large originals. Modernize whatever's already in your media library while you're at it.

4. Defer non-critical JavaScript

Most themes load scripts in the head. A simple deferral plugin (or your caching plugin's defer setting) moves them out of the critical path and often pushes LCP under 2.5s on its own.

5. Use a CDN

Cloudflare's free tier is enough for most sites. Many hosts include it transparently — check your dashboard before installing anything.

The rest

6. Remove plugins you don't use. 7. Replace heavy page builders. 8. Limit external embeds. 9. Preload your hero font. 10. Lazy-load images below the fold. 11. Use a database optimization plugin monthly. 12. Test on a real device, not a fast laptop.