Anyone else seen this? I have a desktop browser game I developed in chrome, with the system scale set to 2. I checked it out in safari and the framerate is around 2-10 fps on safari, retina or otherwise. This is happening on safari retina and safari non-retina. On retina safari it's much worse. Even the custom impact loading screen (with the shaking comet) is really slow and choppy.

Chrome, firefox, and IE all run the game perfectly at 60fps.

If i set the system scale to 1 then safari runs just fine.