Phantasy Star Portable 2

[hirano91]

For some reason PSP2 runs really slow in my PC(less than 20fps).
JIT, buffered rendering, multithreaded are enabled.
I always use 4x rendering in other games like ys seven and god eater burst, but I tried lowering it to 1x for this game, but to no avail.
tried to disable texture filtering and scaling, still runs slow.

Any ideas?

UPDATE: I read in the previous posts that multithreaded should be enabled but it wasn't the case. Disabled multithreaded and it runs smoothly now.