Post a Proton log for good measure.
How is your overall vram usage when running the game and does launching with VKD3D_CONFIG=no_upload_hvv change anything?

steam-12271807113394651136.log
I'm getting around 7 GB VRAM usage and changing textures settings dont do anything.
Command VKD3D_CONFIG=no_upload_hvv changes nothing

Could you try to run the game without amd_ags_x64 set as builtin as a quick test as i've seen a report of fps and frametime issues with it for this game. If you didn't set it yourself via the launch options then run the game with WINEDLLOVERRIDES="amd_ags_x64=n"

WINEDLLOVERRIDES="amd_ags_x64=b" was faulty (removing it fixes fps) but game detects only 4 GB of VRAM tho, WINEDLLOVERRIDES="amd_ags_x64=n" doesnt work, i mean it runs game the same way like without it

Ye the second thing was just if you hadn't set it yourself. Thanks for checking i will do some poking.

thanks for help, is there any way to make game think it has like more VRAM without the dll override?

GPU load was around 85% on Linux and 95-99% on Windows and CPU load was around 60-75% on Linux and ~95% on Windows during testing.

So the game is just CPU limited.

Reproduced the issue.

thanks for help, is there any way to make game think it has like more VRAM without the dll override?

Don't know actually.

GPU load was around 85% on Linux and 95-99% on Windows and CPU load was around 60-75% on Linux and ~95% on Windows during testing.

So the game is just CPU limited.

on windows yes, but on linux removing dll override fixed cpu usage or whatever it was and now cpu is like "unlocked" and im getting now avg 100 fps from cpu when i use lowest cpu settings

@Blisto91 @K0bin reported here also https://github.com/ValveSoftware/wine/issues/196, found some clues to what is causing this issue.

WINEDLLOVERRIDES="amd_ags_x64=n" also helps to load textures, without it they are blurry

@kr1spy2115 The game now have AGS builtin on Proton Experimental Bleeding Edge by default as the performance drop have received a fix. Are you able to verify that it is fine now on Bleeding Edge?

@kr1spy2115 The game now have AGS builtin on Proton Experimental Bleeding Edge by default as the performance drop have received a fix. Are you able to verify that it is fine now on Bleeding Edge?

will do, thanks for info

i will play with this around today

@kr1spy2115 The game now have AGS builtin on Proton Experimental Bleeding Edge by default as the performance drop have received a fix. Are you able to verify that it is fine now on Bleeding Edge?

my friend tested it and it works great now, no problems with it