Tekken 5 Running at 15-20 FPS :(

[Bositman]

may be it is the fault of DX9 ? what say ?
coz my card supports DX 10.1

but my window supports DX 9
that is why i think my game is not looking good at all ...

can this is be the problem ?? shifting to windows 7 can resolve this problem haaan ?

Uh no DX9 or DX10 have nothing to do with image quality. It is because you checked 'native'. Do what Shadow Lady told you