Toca World Touring Cars

[RedHarlow]

Hello! I would need someone's help with the following problem. I'm trying to convert the PS1 game called Toca World Touring Cars into a PSP Eboot and something is wrong, everything works fine, I can enter the game, I can select cars, I can choose race tracks, etc etc , but every time I enter a race it loads a little, and then it freezes , does anyone have any ideas on how I can proceed? I really want this game and it's the only PSP Eboot that's giving me problems .