Has anybody noticed that some animations are actually more stuttery on Mountain Lion? On my 2011 13in 1.7Ghz (Intel HD3000) Macbook Air all the animations are very smooth except 4 finger swiping between spaces. This seems to be caused by the dock, as if I hide the dock or change the dock to a 2d dock, then animations are smooth again. This is also affected by the size of the dock. If the dock is long, whether by having lots of applications or enlarging the icons the stuttering is much worse that if the dock only occupies a portion of the bottom of the screen. This is however doesn't happen at all on Lion and the animations are smooth with any size 3d dock.