I'm not sure if Windows did an update that affected it, but WampServer is suddenly so slow, localhost either crashes after a few minutes, or a page will finally load. It's a WordPress site by the way (not that that should matter). I've changed nothing. In fact, I was away from my computer for a couple days and this is suddenly happening on my return. Did an update or anything happen that could have caused it? Each page will literally hang for 2-3 minutes and finally load or crash. I've looked thru other sites and made sure the host is 127.0.0.1 vs localhost and cgi_module is unchecked (among other things). It worked fine before this.
UPDATE: It was definitely the Antimalware Service Executable. Found this fix:
Now it's running faster than ever. It must have been the windows update.