Massive texture pop-in

[olodaddiolo]

I have this problem where most textures are incredibly blurry and only pop in after 20 seconds or so. Apparently people with similar hardware (Ryzen 5 4500U/SSD) are also dealing with this like in the video below: https://www.youtube.com/watch?v=Z9taMapNpnw The problem seems to fix itself if I set texture quality to very high and restart the game, but I don't have enough video memory for that. I did some troubleshooting and think I've found the cause: r_TexturesStreamPoolSize is set to 8192 on very high, but defaults to 192 on any other setting and won't let me change it, showing as "custom" in the advanced graphics menu. The game is overriding its own graphics setting presumably because it thinks I have less memory available than I really do. I tried adding the parameter maxVram=2048 to the launch options but that didn't have an effect.

Has anyone else encountered this problem and been able to resolve it? As far as I know people using the Steam Deck aren't experiencing this despite it using onboard graphics and shared memory as well.