0.9.x -> 0.10.x Severe performance regression

[Zealous]

My PC:
4090 RTX + water cooling
AMD Ryzen Threadripper PRO 5995WX 64-Cores
256 GB ram
NVMe Corsair MP600 PRO
Windows 11

On clean save with recommended settings I am having 40~50 FPS regardless of settings. Interestingly enough it get's worse when I open Tech Tree for instance. Down to 37 FPS.

Something is clearly broken. Last time I played 1 year ago on the very same PC it was fine.

Tried reinstalling game and NVIDIA drivers. No effect.

Checked with 0.9.x version: works perfectly smooth 140+ FPS
0.10.x version: unplayable

[Zealous]

https://steamcommunity.com/sharedfiles/filedetails/?id=3427362005

[Zealous]

UPD: A rather weird observation, but if I scroll the Tech Tree with WASD it is horrendous, but if I LMB+drag it's actually fine. And it even could be seen on NVIDIA overlay: on mousedrag FPS is around 50, on WASD scroll drops to below 40.

[Nekogod]

The game doesn't multicore that well, few faster cores are better so threadripper isn't the best for it. That said those are some really odd results.

I've got an aircooled 4090 (just upgraded from a 3090)
AMD Ryzen 5900x
32GB ram
Samsung 990 pro
Win 11

So on paper a worse system and I'm getting a solid 120-150 FPS on the latest version, so I don't think it's the game alone rather the interaction with between the game and either your hardware or a driver or something. Or possibly new default settings, maybe play around with the logical thread count setting in the options, it can have quite the impact.

When I set it to default or 24 threads which is what I have I'm at 120+fps, if I set it to anything higher my FPS drops off a cliff, all the way down to 20-30 in some cases.

However I found setting it to 4, seems to be a sweetspot, I get about 10%-15% more fps at least in the early game with CPU timing of about 3.8ms vs 5.1ms when set to 24 threads.

Telling the game I have 24 threads
https://steamcommunity.com/sharedfiles/filedetails/?id=3427438092

vs telling it I have 128
https://steamcommunity.com/sharedfiles/filedetails/?id=3427438228

[Zealous]

Thank you for the idea!

It helped a lot. There is still some noticeable microstutter, but it is so much better now.