I've now modified it so that the first page that comes up will be quite fast, but digging through the archive listings will be a bit slower.
I figure this is okay since most of the forum use is taking place on the first page - especially with the float to top feature enabled.
Viewing an actual post and searching aren't effected by this slow down.
Let me know if there are any problems or oddities; i'll try to fix them right away.
simon