best configuration for playing Persona 3 Portable

[RisettePyon]

Anyone help me to set configuration for JPCSP 32 bit please? I'm playing P3P
here my conf :
#video -> checked : disable VBO, only GE graphics, use vertex cache, disable UBO,enable saving GE screen
#audio ->all unchecked
#memory -> checked : ignore invalid memory access
#media -> checked : use media engine, decode audio files
#compiler -> checked : use compiler
#crypto -> checked : extract decrpyted EBOOT ,handle save data in crypto mode
#Display : anti-alliasing -> off ; resolution -> native

It was really smooth till the battle time... [and its sound was really perfect]; suddenly its FPS turned to 3-5 ! normal : 30 , very slow...
How could this happen?

[digiadventures]

Why are you using disable VBO and disable UBO ? Aren't these supposed to speed up games, not slow them down ?
Disable these options and enable shader and dynamic shaders. Also try using CLUT option if a little bit uglier graphic doesnt bother you

[RisettePyon]

Why are you using disable VBO and disable UBO ? Aren't these supposed to speed up games, not slow them down ?
Disable these options and enable shader and dynamic shaders. Also try using CLUT option if a little bit uglier graphic doesnt bother you

oh i did what you said, but nothing changes
current conf:
Video,
[x]use vertex cache
[x]use shaders
[x]enable saving GE
[x]disable optimized VertexInfo

><
confused , confused , confused