I have to admit I never tested with older versions, but it doesnt seem right
![Razz :P](./images/smilies/icon_razz.gif)
Edit i was doing stress tests in my application, i am using bundled sprite engine and controlling frames directly. I noticed that if i have lots of stuff in the screen but i dont change frame animation fps keeps at steady 60fps. But when i change frame, say 6/second, fps can drop to as low as 30 fps( there is collision code sumed to both cases).
I noticed that this sample does things a bit different. Even though the perfomance is good i see there are these artifacts