I\'m hoping maybe this is just an issue with the simulator but of course it has me worried since I have already submitted my retina capable apps and there\'s no way to test
Remember, it's just a simulator and it's most likely software accelerated. On the other hand, the device is hardware accelerated and Core Animation is highly optimized, since there are only few target GPUs to look for.
Until you check your performance on the new iPad itself I wouldn't be concerned with simulator results.