Topic on Talk:Assassin's Creed Origins
On my Vega 56, I confirm that DXVK is *the* miracle solution to permanently fix the micro-stuttering that plagued Origins. It also massively improves frame rate in cities like Alexandria and Memphis (Odyssey benefits as well in similar places). Note that, in my case, I had to set the built-in FPS limiter to 60 for DXVK to actually work (FPS would remain choppy otherwise).
Kaldaien indeed suggests that Origins and Odyssey on PC were heavily designed for multithreaded APIs, but were downgraded to run on DX11, which completely kills performance in both games. The DXVK (DirectX to Vulkan) translation layer removes that limitation.