god of war 2 help

[mikeezzat]

now with gsdx950 the graphic is on but the game runs slowly plus kratos
after the intro is hang up in the air with opend legs
my pc configure is
2g ram ddr2
cpu amd phenom 2 x3 processor
graphic card nividia gf 9400 1gbyte
please help me to fix this problem and run the game
thanks