ATROCIOUS Performance

Whatever happened to this game?

I remember playing this on an AMD Radeon R390X with fairly high settings and it ran quite smoothly. Now I happened upon the recent big update, bought a couple of DLC I did not yet have ... and the game is basically unplayable?

My current setup is:
* Intel Core i7-8750H
* NVIDIA GeForce RTX 2070 (with Max-Q Design, so a bit slower than a regular 2070)
* 16GB RAM
* OS (Win 10) and game on SSD

I get ~ 2 (two!) FPS on a Low preset benchmark run with DX11/DX12 (even menus and cutscenes are choppy...).

With Vulkan I get ~ 70 FPS on a Low preset benchmark, looks absolutely terrible though. With High preset plus some MSAA and Temporal AA it looks quite decent again but FPS drop to ~ 16.

WTF?

Although the benchmark logs say that it uses the Nvidia GPU already I have edited the Windows graphics settings for all three executables to specifically use the discrete GPU over the embedded one (which did not make a difference).

Thanks for any further ideas you might have!

Benchmark logs: https://www.mediafire.com/file/tjd0a2utkcoxyk5/Benchmarks.7z/file