W3 total cach and theme changes [closed]

You can turn it on and clear the cache whenever you like, it even adds a button to the admin bar specifically to purge all caches. I say implement it as early as possible so that you don’t have to rewrite any code in case there’s an odd conflict with it or anything. You can turn off comment caching if memory serves right, activate the plugin and just read through the options, it does a good job of explaining everything.