JPCSP on KH: BBS

I am trying to run Kingdom Hearts: Birth By Sleep on JPCSP for multiplayer reasons. The game runs well but the graphics don't look too good. Flickering occasionally appears on the screen and random lines appear from the character. Some objects, especially during the beginning cutscenes, don't load well and appear to have no textures.

I am running on the latest revision of JPCSP (1dad8448) @ jpcsp.org. My system specs seem pretty good because I ran it on PPSSPP and it ran just fine.

CPU: Intel Core i5-6300U @ 2.6GHz (up to 3.00GHz)
GPU: Intel HD Graphics 520
RAM: DDR4 8GB

I've seen other people run this game well but I don't know what configuration they're using, e.g. https://www.youtube.com/watch?v=DFZCOhJVXpQ

:/