this is my first psp unit
im not sure if my psp uses homembrew because i dont know how to check it.

i bought this psp on a local retail store.

i bet the unit came from china,korea,singapore or japan for the instructions doesnt have english for me to understand it.

but with the help from a couple of friends.
they got it fixed.hopefully its for permanent already.

"M33 VSH Menu"
"CPU Clock XMB 20/10"
"CPU Clock Game Default"
"USB Device Memory Stick"
"UMD ISO Mode M33 Driver"
"ISO Video Mount NONE"
"EXIT"

the slowness was caused by CPU Clock..
we set it to highest config and its back to original speed
CPU Clock Game was set to highest config also and its back again to playing my beloved PSP...

thanks for answering my thread...i really appreciate it...