how to set jpcsp？

[wby90]

I want to play Final Fantasy Type-0 demo,but the frame is less than 20.
System info

OS: Windows 7 64bit
CPU: amd Phenom II x4 b40 30ghz
GPU: ati h5750 512M
RAM: ddr3 1333 2G *2

catalyst version: 11.7
jre version:6 update 26 32bit
jpcsp version: 0.6 2278 32bit

I saw other person who's cpu is b35,but his frame is 50……
So I think I can play it well. But ……
What's more , the usage of cpu when i play the game is about 20%.
So it cannot full use my cpu?
Maybe some setting is wrong……
So I want to know how to set the jpcsp.


And the last , ignore my poor English……

Thanks.