mGBA should run identically as a .cia and the .3dsx, I'm pretty sure it doesn't use dynarec like gpSP does.It's certainly not just a9lh users, because I hacked my N3DS just before a9lh became a thing, and I'm still too scared to downgrade further considering the immense amount of trouble I've had downgrading both my O3DS and my N3DS in order to get the otp for a9lh. I could use mGBA, but it doesn't perform as well through .cia as people think it does, even on a N3DS.












