Shin Megami Tensei: Persona 3 Portable

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Hmm, so using higher graphics settings made it play smoother?

D3D9 is the subpar rendering engine (because it doesn't support a couple things like dual source alpha, which we need to emulate PSP oddities correctly), generally, unless you're using a graphics card that doesn't like OpenGL. You'll get less graphical glitches using OpenGL so prefer that if the speed is roughly the same.

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