Lag lag lag on retina display (video recorded)

Mac is not that smooth anymore.

I put one MacBook Air with my MacBook Pro on the same table and tested a web page with lot of pics and flash video stream components.

I am not satisfied with the performance on such a expensive laptop.

Not much needs to be explained here. Just click the link, see how lag is that.

http://m.youtube.com/watch?v=DnYEzwgkREQ&feature=plcp

Both of the MacBooks are tuning 10.8.3 system, just jump to 1:20 to check the scrolling lag.

I hope apple could issue a new upgrade to fix it at the coming WWDC.