On my macbook pro retina 15 inch early 2013, when i pinch and zoom, you know zoom out to go to another tab it lags very very much, not on an external display. I have tried to change resolution to see if there was any difference, but it didn't work. And the reason i am placing this in the macbook pro section is because my dad, brother, friends etc. doesn't have the problem with their macbook air, neither do i only with my retina macbook pro 15 inch early 2013.
Safari 6.1.2 beta, (it was like this before the beta too)
mountain lion.
Safari 6.1.2 beta, (it was like this before the beta too)
mountain lion.