Game runs slow on iPhone 3gs
I just released a game to the App Store. Some 3gs users are seeing substantially lower frame-rates. I have a friend with a 3gs and the came crawls compared to my iPod Touch 2g that I test on. Turning on airplane mode did not help. On another friend's 3gs we went into my settings page and turned background music off and returned to game. It then ran fine so we went back into setting and turned music back on and it continued to run fine. Strange! Is there some power saving mode on the 3gs that is causing things to slow down? Help! I'm running a promotion soon, but won't if there is a real issue here.