@Benzitor It's not about standards, adding an emulator knowing that almost none of its popular exclusives (panzer dragoon, virtua cop, sega rally, daytona usa, shining force 3, radiant silvergun, ...) will run "full speed" can only cause frustration (and i consider it would still be acceptable if the game had no slowdown while skipping 1/3 of its frames, but we aren't even there). And unlike the systems you mention, saturn is actually a popular system which is requested a lot, so the amount of users complaining because it run like crap would be on a different scale.