I use your discussion list but it works very slowly when numbers of forum is about 2000. When I try to open one forum it takes from 1 to 5 minutes (processor 2.4 MHz 1G RAM WINXP). It is of course at first time for each user.
Do you test forum with such numbers of forums?
If you would have any solution please let mi know about it.
tune the cache in administration panel.