I've am working my way through benchmarking it on a few different CPUS [1]. A Pentium Overdrive 83MHz gets around 30fps, and the 486DX2-66MHz around 20fps. Because the 50MHz will use a bus speed to 25MHz I am expecting it to be 10-15fps.

Even with a lower frame rate gameplay is relatively smooth with having a fixed-timestamp mode [2].

The biggest difference in performance is the sound backend [3]. Gravis Ultrasound and Adlib for some reason halve the framerate on all cpus and it's the next challenge to point Claude at.

1. https://github.com/ecliptik/doskutsu/blob/main/docs/FPS-MATR...

2. https://github.com/ecliptik/doskutsu/tree/main#fixed-timeste...

3. https://github.com/ecliptik/doskutsu/blob/main/docs/SOUND.md