I have an established Magento site that is only just starting to get complaints about its performance. It's on a shared server. The internal server-side cache is also enabled.
Some of the problems I have noticed are
- Many HTTP Requests
- No minification of CSS or JavaScript.
- No CSS sprites
- Shared server isn't recommended for Magento, or so I've read
Unfortunately, I can not get a dedicated host and I don't want to hack the codebase to minify all JS/CSS.
- Is there any plugins that will minify CSS / JS?
- Do you have any experience with speeding up Magento's performance?