ZoE is very gpu bound anything above 2x will hurt fps unless you have a very good gpu, so keep it at native or 2x for best performance...
(btw ZoE is a weakling compared to what ZoE2 throws at the emu even native is too stressful for most good GPU's )
(btw ZoE is a weakling compared to what ZoE2 throws at the emu even native is too stressful for most good GPU's )