Maybe because of https://gitlab.freedesktop.org/mesa/mesa/-/issues/11759
It's not buggy and we've put in a lot of work to make it run better than it does in vkd3d-proton 2.13. There's nothing actionable in this issue so I'm going to close it.
proton 2.13x1 2024-10
On all games that i tested like The Last Of Us or Silent Hill 2 FG 100Fps is choppier than Native 60Fps. That is also present on Windows to but to much less degree. Different presentation modes, Freesync, Vsync, Compositors, don't help.