Gundam battle assault 3 slow issue

[abusuzuki]

the game run between 20-30 no matter what render I use ( hardware,software) the fps will be the same.

my pc :
core i7 [email protected] ghz turbo up to 3.1ghz
8GB DDR3 RAM
Nvidia GeForce gtx 525m 2gb
windows7 64bit
PCSX2 0.9.8 (r4600)

so far I tried 32 games with this pc.. all of them run at full speed except this
Do you know any settings to fix this ?
And as usual I'm using default settings.

[Squall Leonhart]

more clock speed.

[abusuzuki]

more clock speed.

So.. what is the suitable clock speed that can run GBA3 at full speed? have anyone got it to work fine? who can play this without slow I can guarantee that he can play the rest 2015 ps2 games ( got it from wikipedia) without any problem.