What should i do?

hi
i am asim. i am working on a game engine
but the major problem i am facing is my programme is too slow. i have run this with vudoo card but nothing is improved. but when i off all textures then it runs little faster.
i want to ask u people that what can done to speed up my game.
and secondly what r the method of making opengl more efficient…
waiting for a healthy response
bye
ASIM FROM PAKISTAN