The "nice" thing about writing for PCs was that even if our game was slow, if we took long enough to release it, the hardware out there in the real world would catch up a bit. (Of course, taking a long time to release the game creates other problems...) It still amazes me in retrospect that people were willing to play Ultima Underworld at single-digit frame rates, though. It wasn't really an action game, but still. I think our target "that looks pretty smooth" frame rate was 12 Hz, and if a super-powerful PC could get up to 20, that was insane. It was a different age...