Help on configurations/settings

[anonymoch]

Okay, to start up things, I have read the guide referring to how to set up ppsspp. I have a couple of questions though:
Device: Cherry Mobile Fusion Bolt (Android JB 4.1.1, please google the specs)
PPSSPP v0.9.1-7-gb677c81
My current settings:
Graphics- Bufferred Rendering, Frameskipping Auto, Hardware trans and Vertex Cache and Mipmapping ON, texture filter Nearest.
Audio: all on
System: Fast mem ON, JIT ON, cpu clock 0, debug logging enabled.
(Settings not mentioned is either on default or off)
So I have 4 games as of now: Corpse Party, Patapon, Persona 3 and Black Rock Shooter
Speed/Performance report on current settings:
Corpse party- going to 90-100% and sound is good, no problems at all
Patapon- same as above except when they started singing the speed drops and the sound also drops
Persona 3- everythings fine except when it's exploring time in the dungeon speed drops, sound drops, I only get decent speed when the game shows less characters (one hero, one-two monsters)
Black Rock Shooter- movies are blinking but sound is good. When I can move/battle the speed is playable (about 10-16 speed) but sound is cracky

I noticed that 3d/full 3d games runs slow. I can only run Corpse Party without any problems. So the question is if my device is not powerful enough or my settings is wrong (tried non buffering+frameskip off. Picture is good but it lags)

sorry for posting in the wrong section, if ever.