Ran into an issue

[Urmomsfavoriterapper]

Alright, long story here so I'm going to keep it short. I downloaded an "altered" PPSSPP to enable sound on the emulator. Downloaded KH BBS, all went well until my emulator all of a sudden starting freezing, I'm using this on the PC, btw. Everytime I play KH BBS, it will either freeze after the part when Aqua, Terra, and Ventus destroy all these orbs during the Keyblade Marksman Exam. Or, after the spar Ventus, Aqua, and Terra have. Perhaps it's my ISO? Do you guys have any ideas?