Does page caching help? I have that setup for my personal wordpress blog. I really don't wanna have to modify all the javascript on my page. I've got bigger fis

Does page caching help? I have that setup for my personal wordpress blog. I really don't wanna have to modify all the javascript on my page. I've got bigger fish to fry. I also don't want to have crap slow page loads. It loads for me in under a second.