i have the same issue in my old isa crystal sound card w/ the sound driver came w/ windows me it lag in vgs that gave me 5-10 fps at some point...reminds me of the later SB16 directx drivers causing slowdown (sound delay) with the old SB16 ISA card...a similar thing.
ok thats nothing that det driver also work w/ petes gfx card buffer(motion blur) w/o a lot of performance lag be sure to try that !!!!THANX!!! FireGl i have tryed the 10.80 detonator and the performance and the sound are perfect!!!the blur continues there but its ok. now i can get back to my live....PSX GAMING!!hehe