To ensure a good speed and maximum compatibility with the caching plugins here's what you have to do (these are the settings i'm also using in General Settings):

  • Page Cache (enabled - Disk: Enhanced method)
  • Minify (enabled but experimental - try minifying the js files only, not css, and if it breaks, just deactivate it)
  • Database Cache (this one can be enabled but it might also throw errors in terms of widgets. so if it doesn't work, just deactivate it)
  • Object Cache (disabled - do not active this)
  • Browser Cache (enabled - this gives you good scores in GTM)
  • CDN / CloudFlare (enable only if you know how to configure it)

Aditionally, in the Browser Cache settings, this is how your settings should look like: