Game Unplayably Laggy On Machine Exceeding Minimum Requirements
Posting this here in the hopes that anybody can help with this, I've tried just about everything I've already seen about this though, so my last real resort is to report a bug because it's pervasive and literally nothing I do has any meaningful impact on performance, or it lasts only a few seconds before starting again. I've been at this for 30 hours of recorded game time (half of which was spent just trying to get the thing to not crash on startup every single time), not even counting all the time spent with it closed searching, troubleshooting, sifting through system files and drivers, making sure everything was updated, experimenting with every single available option, and at this point I'm near certain it's a problem with the game itself and not with my machine. Anyway, here goes:
System Specs:
AMD Ryzen 5 CPU
AMD Radeon 5500 GPU (integrated card, yes I know I need to allocate RAM from the CPU to it manually, I've done that)
40 gigs of RAM (minimum of 20 gigs dedicated to GPU, exceeding the 16 gig requirements, with a maximum allowable consumption of 40 gigs, so it absolutely is allowed to use all of it)
Windows 11
My BIOS, Windows version, AMD drivers, and every other piece of relevant firmware are the absolute most recent version compatible with my PC, v24.9.1, yes I know they released a dedicated AMD driver for the game, but we bought the game before that driver was released and it wasn't part of the listed game requirements.
Yes I know there's a mod or two for it (but actually there's only one now as of yesterday) on Nexus, tried those, they had no effect, and I know the shader cache can cause problems for some people but the only difference between having them there and having them gone is aesthetic and doesn't affect performance. I've edited game permissions, I've changed the render settings, I've capped the framerate, I've tried every combination of settings, every performance change or suggestion, and any and all solutions offered by anybody else on this website or on Reddit to the point of exhausting all existing posts' advice.
Please, somebody help me, I just want a working game or my money back.