The AH would be better if there weren't so many people using it. This is what my typical experience is like in IF (even if I'm not going to the AH).yeah scrolling down the ah items when theres a long list, the client freezes up for a few secs. i think its downloading the item list or something.
Get off the tram/leave the mage area (if I teleported in)
Head towards the AH/Bank area
Within sight of the AH/Bank area, begin to lag
Within 20-30 yards of AH/Bank area, game freezes for 30-60sec
Players appear and I have control over my character again (albeit laggy)
They should move the bank to the opposite side of the forge - there's just too many players in that area. The other option is to open an AH in stormwind and have it linked to the IF one, but I'm not sure if they'd do that or not.