Alright, well then, for me, software rendering was noticeably slow when running at full 640x480 on a 400 MHz P2 (unless it was a rather simple field screen, which generally worked fine). Although, I didn't really notice until I switched to 320x240 and the game was faster, since I wasn't really familiar with how fast the game was supposed to be. But after that, I played in 320x240 most of the time for the speed.