Okay, so here's the test that I just ran on enabling or disabling. WP fastest cache, I ran a pingdom. Free test from San Jose, California. As you can see, my grade is 84. My load time is 5.16 seconds, page size requests. Now I turned it back on enabled it.

Here's my second test over here. 1.89 seconds, same page size, five less requests because of those caches. So I just want to compare that. There it is, same grade, nothing really changed, except it reduced the number of requests because it served off things that were already pre loaded. And then it reduced those page load times dramatically. That is a lot of people are going to be much much happier with you than five seconds to get your website going.

So again, that's why you use a cache. That's why I recommend the premium version.