Reduce PPSSPP Lag?

I have an RG40XX V and was wondering why some games, like Midnight City LA Remix, cap at around 7 FPS. Assassin’s Creed: Bloodlines is the only game that seems to run fine. I’m using KNULLI OS, and I’m not sure which settings to adjust. Or is it possible that the device just can't handle it?

https://reddit.com/link/1hnvfv9/video/53wanmtv0i9e1/player