PSP emuelec 3.9

hello I have a tv box h96 pro plus 3gb ram emuelec 3.9, I have a problem with psp games, for example need for speed Underground 2 or gta vice city, the games start but are slow I changed the psp emulator but no changes can anything be changed in the settings to play was more fluid and not jamming?

Good afternoon,
The problem of the AMLOGIC S912 are the GPU drivers that have available, has many errors. So possibly you can not get a lot of improvement by touching settings.