Hello,
Since the change to this beta the performance went down, but with the current updates the stability is VERY low. 10 restarts per game.

I am willing to help if possible. Any suggestion? Should I try Vulkan?

I think I have a good enough computer:
Intel i7 4770K
32 GB DDR3 2600MHz
ATI R9 280X 3GB

Thanks for improving Linux!