Emulators on the DS
I would really like to get a Nintendo DS. I do have one question though; how well do NES and SNES emulators work on the DS? I ask this because my friend recently got an R4 card which he uses to play such emulators on his DS. When he plays games like Super Metroid and Super Mario Brothers 3, the graphics are extremely choppy and in some cases unplayable. It is not just those roms either, the DS seems to have trouble with nearly all of the emulator games. Is there a way to fix this? I would really appreciate anyone who can help answer either of my questions.