Site speed - log out for a faster experience
This isn't a long term solution, but ScriptSpot delivers cache'd pages to logged out visitors instead of doing tons of database queries when a user is logged in. So, if you're frustrated about the speed, try logging out, you should get your pages in a fraction of a second then.
I'm working on a long term solution, which may actually be upgrading to a significantly faster server. We'll see since that'll cost $$$.