I was worried it was my computer, but it turns out it's just Safari. For example, on MacRumors when I click the Forums tab, it will take a few seconds to even register, then the loading wheel pops up for another few seconds. It's really annoying. Youtube videos are a pain to load. However, I've tested the same sites on Chrome and it's perfectly fine. I guess it's important to note that I just started having problems today. I prefer Safari and haven't had any problems in the past. I'm running the Yosemite public beta by the way. Any help would be appreciated. Thanks.