Sorry, I've been out for a while.
First, I'm not at a point that I need you to take time out of your day to analyze my stuff. It's awesome of you to be willing, but I don't feel right about it when I'm not having any true issues and was only seeking opinions. As far as my forum goes, it is not slow by any means. My home page (according to vboptimize) loads in about .17 seconds. If I turn off the shoutbox, that drops by ~.1 second. This isn't the results the page test show, obviously, but it's the general perceived load speed, and my users tell me the speed is fine anyway.
And second, the main reason I didn't post a link to it, or show the url in the page test result is the fact that the forum is not family friendly. It's not a full-out A/O rated forum, but it does have some NSFW elements/areas.
What's your total page kb load, for the visitor?
Forum home page is about 500kb, and I chose a random wiki page with some images in it - ~1800kb.
I pay around $160 a year for a shared machine
My forum server is about $20/m. I could probably do better if I looked around, but so far this one has had great service, and it's plenty fast. It has SSD/6 cores. It has enough RAM, for now, at 2GB. It is lacking in bandwidth allowance, though, at only 750GB/m.
I'll probably keep this one until I get to a point where an upgrade is necessary.
I've also been considering switching to nginx all around, instead of just using it on my static file server, just for that extra boost it gives over apache.