The Forum does seem to have run very slowly, at some points, when I've been using it. Some pages have taken most of a minute to come up, others walk-away-and-make-a-cup-of-tea speed. On the other hand, some pages have arrived pretty quickly.
I'd be interested in whether others have had the same experience, or, whether the Forum has run more smoothly for them. I'm initially using Firefox on a pretty fast Windows 7 desktop over a Demon Internet ADSL line, but I'll try a few other routes, and see if that changes things.