Why is my WordPress website slow?

Measure before changing anything

Test a representative page with PageSpeed Insights and compare mobile versus desktop. Look at Largest Contentful Paint, interaction responsiveness and layout shifts. A Lighthouse score is a lab estimate; real-user experience may differ.

Find the bottleneck before upgrading

Find the largest bottleneck

1. Compress oversized hero images and serve appropriately sized images.
2. Check heavy plugins, third-party scripts and unused CSS/JS.
3. Review caching and CDN configuration without caching personalized or checkout pages incorrectly.
4. Check server response, PHP worker usage, storage and database performance.

Change one thing at a time

Keep a record of test conditions and measure again after each adjustment. Disabling a plugin can break business functions, so test forms and checkout afterwards.

When hosting resources matter

If the site is consistently CPU- or memory-bound under real traffic, a suitable hosting plan may help. An upgrade cannot fix every slow image or render-blocking script.

How to confirm the issue is resolved

1. Repeat the original action that produced the issue.
2. Check the result in a second browser or network when relevant.
3. Review logs or status messages for remaining errors.
4. Keep a short record of what changed so it can be reversed if necessary.

If the issue persists, contact support with the exact error, time, affected domain and actions already tried—never include passwords or secret keys.