The addition of Site Performance in Google Webmaster Tools has given me a rude awakening to my site's dismal load times. Apparently, my average loadtime across the site is 4.0 seconds, and the forum homepage loads in 6.3 seconds. It's running on a dedicated server with plenty of overhead at all times, so it's not a hardware issue. I've been reading up on optimizing vbulletin and I'm starting to implement the suggestions, but I'm curious about how our site compares to other vbulletin forums.