do I need more ram?

[kyousuke]

Sorry to say but RAM on a lower end range GPU serves as nothing but marketing buzz. Since most people think a GPU perform based on how much RAM it has.

As for the freeze you should make log of it and post on the game's thread to help.

About the log I tried to make it but I didn't find a way to generate it from jpcsp even though I saved the log settings and enabled both html/txt logging. In the end I copied and pasted the log window output in a txt file.