Avoid experimental “Vulkan experimental” builds – they can cause stutter on Pascal GPUs.
Proton and Wine handle portable executables much better than installers. The "1070 portable" version runs natively on Steam Deck via Proton Experimental with minimal tweaking. frosty mod manager 1070 portable
If moving to a laptop 1070 (mobile), drop texture mod resolution to 2K. drop texture mod resolution to 2K.