I recently bought GTA IV on the Xbox 360. I have an Xbox 360 Slim 4GB version, and I run the game from the disc (not installed).
Well, for whatever reason, after playing only a few minutes, the framerate will dip between 15-20 FPS, making it hardly playable. Buildings will also be delayed to appear on the streets, and the game all around just feels like crap. I recently played it on the PS3 and had absolutely no problem.
Is this a common issue when running from DVD? I don't want to think its my 360, because if it is, I will be returning it and switching back to PS3. I know I am late in the gen to be buying these older consoles, but I moved to 360 at advice from my friends, but so far, I am far from impressed. GTA IV being my only game on the console right now, I have no idea if its just the game or the 360, so help would be very much appreciated.