Because is the same game that is not support the moderns SO and is patch oficial 1.1

Recommended tht RVGL, that have support

Originally posted by Pizza Prosciutto:

Sadly the Game is UNPLAYABLE on my System with Ryzen 5 5600X and a Radeon 6800XT Founders Edition. I have between 5 -30 Frames Ingame. My Son has a AMD System with a NVIDIA 2070 - the Game runs fine at 60FPS. I think the Problem comes from the poor Performance from OPENGL in my AMD Driver :-(

imagen you try to run a over 20 year old game on a high tech pc and its not working...and going back where we all had basically "toaster pcs" and see, its running smoothly.

its sad but true XD i mean this game was running on the N64, playstation (even if it was the ♥♥♥♥♥♥♥♥♥ version) AND Dreamcast ffs...

Originally posted by Pizza Prosciutto:

Sadly the Game is UNPLAYABLE on my System with Ryzen 5 5600X and a Radeon 6800XT Founders Edition. I have between 5 -30 Frames Ingame. My Son has a AMD System with a NVIDIA 2070 - the Game runs fine at 60FPS. I think the Problem comes from the poor Performance from OPENGL in my AMD Driver :-(

I am having the same issue. Runs great on my crappy laptop and lousy on my RX 6800XT. I have tried the RVGL thing that others have suggest and for me at least it didn't make any difference. However I do think that someone will find a fix or a work around for it eventually. Until then I am content to run it on my crappy laptop, that's why I bought it anyway LOL.

Originally posted by Pizza Prosciutto:

Sadly the Game is UNPLAYABLE on my System with Ryzen 5 5600X and a Radeon 6800XT Founders Edition. I have between 5 -30 Frames Ingame. My Son has a AMD System with a NVIDIA 2070 - the Game runs fine at 60FPS. I think the Problem comes from the poor Performance from OPENGL in my AMD Driver :-(

Same here. Between 10 and 25 fps.
GPU: AMD Radeon RX 6700 XT
CPU: AMD Ryzen 5 5600X 6-Core Processor

Its so sad.

recomendation
get rvgl and update amd to 22.7.1 driver which boost massively the perfomance in opengl games