When on the main page, if you click the little head up next to the bell to bring out the side menu with user name and all that other info on it, scrolling with a mouse wheel is SUPER slow.
Where normally I can just roll my finger down a little and be half way down, or just flick my finger and its at the bottom, I have to scroll the wheel a bunch of times to get down to seeing the quests and stuff.
When on the forums, the side menu works normally and I can just flick and scroll down quick, so it has to do with the code for the new updated site.