Performance Problems with DXVK/RADV

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Description Better radv-driver support

I have recently switched from an NVIDIA GPU to an AMD GPU (Radeon RX 590). While my native Linuxgames are working great with the MESA GL and MESA RADV Drivers, all Games played via proton utilizing dxvk are a complete disaster performance wise. I am using the latest MESA Drivers from oibaf ppa on my kubuntu install in combination with kernel 5.0. I have checked the games on another machine with the same hardware but with an NVIDIA Geforce GTX 1060 and the latest driver. The same games that cause my AMD GPU to produce massive inputlag and stutters in games like Path of exile and Kabounce are running great on the NVIDIA GPU and the same version of proton. I guess there is more optimization needed in proton or the radv driver itself to solve this problem.

Start by reproducing the reported input lag and stutters with the listed Radeon RX 590, RADV/Mesa, DXVK, Proton, and kernel setup, comparing the affected games with the NVIDIA results described. The issue does not name a file, test, or specific component change; done would require identifying and resolving the relevant performance problem in Proton, DXVK, or RADV.