Can I improve speed on O3DS model?

[Gameboydayz]

I can't seem to play gba games on my o3ds due to so much lag. I don't own n3ds and just use mgba for gb, gbc games which work great! I tried messing with some of the settings and didn't have much success any other solution?

[lemozenec]

Retroarch's gambatte works pretty well for me, though I'm using a n3ds so I'm not sure how the o3ds handles it.