Slowing down at some games

[brightsiderus]

i have some troubles with crash twinsanity, its slowing down at some moments and also my Onimusha dawn of warrior stops on the intro video after launching the disc and checking memory card, or just missing many textures. also Spyro Hero's tail and enter dragonfly freezing at start with notice in console "(R5900) Re-executed ELF Entry point (ignored) [addr=0x00100008]".
have notebook
Intel core i7
Nvidea GEFORCE GT 650 M 2 gb
8 gb ram