There are 2 major problems:
- Render issues
- Mouse polling rate

There are guides suggesting to install dgVoodoo. I'm sure it works, but it's too much hassle.
What you really want to do is to wrap d3d8 to d3d9 using d3d8to9 (d3d8.dll file)
https://github.com/crosire/d3d8to9/releases/latest

Then you want to wrap d3d9 to vulkan using dxvk (x86 version of d3d9.dll file)
https://github.com/doitsujin/dxvk/releases/latest

Put both files in game's root folder and torch shadows just work as they should.

The polling rate issue is not that easy to fix, apparently, you're locked to whatever options your mouse vendor provides. The core problem is that anything higher than 125 will affect the game logic, so you have to limit it somehow, usually via your vendor software.

For Logitech mice you can actually avoid G-Hub bloatware and just use Onboard Memory Manager:
https://support.logi.com/hc/en-hk/articles/360059641133-Onboard-Memory-Manager

Simply set Poling rate at 125 and save.

Don't forget to revert it back to higher value though.