You may want to use Google to read up on how to optimize your site, what caching does in a php dynamic environment, how php works, how WordPress works, etc.
Not a simple answer. If you don’t know what a caching plugin actually does, then you may not want to use it until you do.
Test your post with GTmetrix.com to see what other things are “wrong” with your site, server, content, images, expiration headers, page load time, etc., which need to be addressed before using a caching plugin — which is icing on the cake, not a one-cilck fix for your site optimization.
Hope that didn’t sound harsh, but it’s a learning process, so good time to do some research. 🙂
Yep, understanding is a good idea.
WPSC makes your server give result to client faster. That’s it. That’s very important.
What you see in pagespeed score are other criterias, which are important as well, but has nothing to do with WPSC. There’s nothing wrong with WPSC.
