Playing the regular AH I usually got 60 fps because thats the monitor refresh rate.  Thats with full detail and HiRes pack.  Since I installed beta (was getting 45-40 fps playing beta with full detail and HiRes pack) when around a large number of cons, fires, water my FPS drop to 13-20...and that sucks.  So the question is why would my FPS drop like that if beta didn't effect regular AH2.  I haven't installed anything new other than Beta or changed any settings.
DuHasst