black screen

[solarmystic]

Hi and welcome to the forums apeturis.

While Non-buffered rendering is considered the best option for performance, it's not the best option for compatibility. It's considered a hack for good reasons.

If a game needs Buffered Rendering to work properly (like FFT in your example), you'll have to enable it. There's no other way around it.

For better performance, you can always enable it, and reduce the rendering resolution to 1x or 2x.