https://bugs.winehq.org/show_bug.cgi?id=54223
--- Comment #16 from Béla Gyebrószki gyebro69@gmail.com --- (In reply to Zeb Figura from comment #15)
Does WINE_D3D_CONFIG=cb_access_map_w=1 help (and if so how much)?
Quite the contrary. This results in a further ~40% reduction in the DX11 benchmark score for me.