Is Rival Schools supposed to be this slow? (Zinc)

[Ozzy]

My specs are in my sig. Even when I have Zinc on the most bare-bones video settings, Rival Schools runs on average of 40 fps and about 30 fps if there is "precipitation" in the background. All my other roms (I have 5 others including Star Gladiator and SF: EX2+) all run on a smooth 60 fps with all bells- & whistles enabled.
The only explanation I can think of is that RS ran this way in the arcades as well.

[fivefeet8]

I can run Rival Schools at full speed with the ogl and glide renderers on my system.. Check my profile for my computer specs.. Try disabling slow geometry..

[sights]

...you could also try inserting a higher value in the "texture caching" option...