High CPU usage
If you are experiencing high CPU usage on your site, there are three possible ways WP Rocket could cause this:
Some servers do not like our preload bot. You can turn this off and see if that helps. See this article:
Resolving issues with preloading
Pages not being cached
Make sure that WP Rocket is active and caches your pages:
How to check if WP Rocket caches your pages
Occasionally minification can cause high CPU usage in cases where your site has a lot of CSS or JS files. Try disabling the minification options and then monitor your CPU usage to see if it helps.