After updating to 0.174 I've noticed that Kung-Fu Master is now running at full speed and the sounds are fine again. The voices are too low but audible anyway!
Thanks to Couriersud and other devs who are working on discrete drivers!!!
>The kicking sound alone makes me want to kick the cabinet. About as bad as some of the 70s kung fu flicks which had that metal door slamming sound for punches. Fuck.