Originally Posted by ThePowerofLava
And the itouch 4 is notorious for performing horribly. I think Rockstar did what they could to optimize it to most things, but having devices that are 3-4 years old would make any new iOS game laggy and crappy.
they never even tested the game on the device,it was crashing all the time on ipod 4g at the time of release.so they didn't actually do anything to optimise it on any device.notice how the game runs on ipod 3g with real time
shadows,whereas it is not supported in itunes page.