In AH, there are many large torches on the walls.
Maybe most users don't notice them, but they cause an awful graphics lagg to some of us.
I play from a netbook with no graphics card and I can clearly notice that the "fire" effects around the game are not optimized. All other effects are very good, but the fires lower my FPS dramatically.
The worst is in AH. There are many large torches around the walls there.
I have 30 sec freeze time when entering AH and believe that it is the same with every person, playing from a low-end machine or a graphics-deprived netbook.
Therefore, I would like to suggest that those torches be replaced with something else. Or at least their number be reduced.
P.S. I am pretty sure the lagg is not due to other people in AH.