Tekken 6

[solarmystic]

it's so slow in my tablet T_T

Try turning on frameskipping. Set it to 1, 3, or 5. Even numbers like 2, 4 or 6 will make the screen flicker badly.

Turn off buffered rendering if you haven't already.

The game is really heavy on mobile devices. One of the heaviest games to emulate on PPSSPP actually, next to the God of War games.

Try emulating Tekken 5: DR instead if you want a Tekken game on your tablet. Runs much better than Tekken 6, looks roughly the same.