Well what i was trying to test was the performance of chrome verses IE9. I made another version of the test with the layout 800x600 and the window 800x600. Chrome can't handle it, but IE9 has the same performance. New Testcapx
My conclusion is that as your window and layout gets bigger IE9 has better performance when dealing with many physic objects.
The same is true when your sprites are big.rfisher2012-04-28 23:12:13