Uoyabause runs terribly bad in this device. Games thatbrun fullspeed in my gpd xd run half speed in this jxd. Reicast is also a bit slower, like It was frameskipping although i have frameskip to 0, so It runs jerky and with bad sound. Ppsspp is a hit or miss, in my gpd xd i can Play Tekken 6 or medievil fullspeed, in this device about 75 percent speed. Other games like jeanne d'arc runs a bit better.
Android games run very similar to my gpd xd. Some a bit better, others a few worse.
Device is not bad but i prefer gpd xd or even q9, the dpad of s192k for competitive fighting games is quite hard, like making parries on sf3. Luckily It was a gift, if I would have bought It with my own cash i would be dissapointed, because It's expensive considering the performance