I have no other problems on any other website, but Halforums slows down after about an hour or two of browsing. It gets to be a painstaking crawl if I don't do anything about it. However, if I close the tab and reopen it to the same thread I just left, it runs perfectly fine...for another hour or two. I am beginning to suspect this is an issue with the XenForo database architecture or a plugin to the database, but I don't know for sure. When it starts slowing down, it is the calls to Google+ and Facebook (and other plugins, maybe?) that it appears to struggle with.