AutoCache is what the name implies: automatic cache.
Regardless of the web application you're using, AutoCache should be able to speed it up. It will sit between PHP and your PHP web application and watch what data passes by, so that if there is a duplicate request in the future (within a set timeframe), then instead of letting the app run its course again, we'll serve a saved/cached response instead. This means less database queries and less processing per request (as pulling an object from cache usually takes 1ms).