
I have AS on an iMac, a SurfacePro3, and a desktop PC. The PC desktop is the newest and beefiest of the 3, but dragging keys in the timeline is painfully slow (with the included dragon character for example). Also - Using sticky keys for shortcuts (holding key to toggle tool until released) has very laggy behavior. There is no lag when completely switching to the tools. I'm referring to holding keys like T, C, and W.
I had actually started liking AS's drawing tools, but the laggy sticky keys are hampering my workflow quite a bit

EDIT: The PC having the issues has an NVidia 750 Ti, fwiw.