FPS drops over time to unplayable

[Schrodinger-Cake]

For some reason, I haven't found similar discussions, but I'm sure the problem isn't in my hardware or software.

Regardless of region, truck, single player or multiplayer (host/client), I'm facing serious performance issues. When I first load into a map, my FPS stays around 90-120, but over time it starts to drop to 20-25, gradually, like a countdown, accompanied by short stutters. It looks like memory leaks or a throttling issue (which I of course excluded by stress testing the CPU and GPU). But the strangest thing is that when the game is not in focus, the FPS immediately rises back to 120 (vsync), but when I switch back to the game window, the FPS immediately drops back to 25. I haven't had such issues before, it started after the latest update. I deleted the game and reinstalled it, but it didn't help. Changing the graphics settings also doesn't make a difference.

If I can give the developers some logs or other engine statistics, please tell me how to do it. I have no more ideas what to try. And yes, in any other games, including Mudrunner, there are no problems.

My specs:
i5-10400f
32Gb DDR4@3867Mhz
RX 7900 GRE 16Gb vRAM
Game runs from 1TB SATA SSD, OS runs from NVME
OS: Windows 10 Pro 22H2 19045.5371
Graphics settings set on High at 3840x2160@120Hz

[Denniss]

Either something gets too hot and throttles or its the power limit of your CPU - short and high burst but then falls back to 65W

[Nyah]

are you in fullscreen or borderless?
its a strange bug, if your hardware can hold a stresstest, it seems like a bug maybe in the amd drivers, try switching to another settings between fullscreen and borderless to see if it helps

[David]

My PC is inferior to yours and I play without problems. something happens on your pc.

[Schrodinger-Cake]

Originally posted by Nyah:

are you in fullscreen or borderless?
its a strange bug, if your hardware can hold a stresstest, it seems like a bug maybe in the amd drivers, try switching to another settings between fullscreen and borderless to see if it helps

Thank you, you are right. The problem was in AMD drivers, or more precisely - switching FreeSync from "AMD Optimized" to "Enabled" and Tessellation in the same way.

[Nyah]

Glad you can have fun properly now =)

[Raveren]

Have exactly the same problem on GeForce RTX 3060 - updating drivers to newest version didn't help.

[Toyotaco06]

I've seen a couple years back a video showing that its eating up memory and if you watch your memory it will slowly keep going up and up and up and up.
I can't remember what the fix was.

[Raveren]

Nah, that's not it. I've restarted my PC to clean memory completely (I'm restarting my machine VERY rarely, like once every few months), started snowrunner, drove around Michigan for like, 30 minutes, and FPS started to tank. I've had 14GB of free RAM at the time, GPU and CPU usage at 30-40%, no temperature issues, nothing. Something is destroying FPS since last update, I didn't have problems like that 2-3 weeks ago, when I came back to Snowrunner

[Inquisitor]

Having the same issue with a 4070 Ti Super recently, after ~30 minutes the FPS becomes noticeably lower and keeps dropping, within 45 minutes the game is pretty much unplayable.
Game restart doesn't work, only PC restart

[Duke Flapjack]

Originally posted by Inquisitor:

Having the same issue with a 4070 Ti Super recently, after ~30 minutes the FPS becomes noticeably lower and keeps dropping, within 45 minutes the game is pretty much unplayable.
Game restart doesn't work, only PC restart

I'd check to make sure your GPU is being cooled properly. This is not a particularly intensive game graphics wise.

[Inquisitor]

Originally posted by Duke Flapjack:

Originally posted by Inquisitor:

Having the same issue with a 4070 Ti Super recently, after ~30 minutes the FPS becomes noticeably lower and keeps dropping, within 45 minutes the game is pretty much unplayable.
Game restart doesn't work, only PC restart

I'd check to make sure your GPU is being cooled properly. This is not a particularly intensive game graphics wise.

It is (being cooled), barely even warms up, the issue is the same even if I reduce the resolution and details to low.

The issue is new, only started with a snowrunner update in the last two months or so (hard to tell exactly, I don't play it that often), been playing the game off and on for years and the issue is new

imo definitely seems like some kind of memory leak as the FPS degrades gradually and just keeps getting worse

[Raveren]

I've fixed the problem a few days after posting the issue here. Updated my reddit post with solution, forgot about steam community.

NVidia drivers were the culprit. I've downgraded to 566.14 and those fps drops disappeared completely.

Hope that works for you :)

[Denniss]

borked hardware launch with almost zero availability of gfk cards at normal prices, borked drivers with lots of bugs - a hell lot of problems with the 5k series launch

[Dorian]

Hey, I don't know if this can help you, but I solve the problem when I switch off the Vsync. I've installed the last studio driver on my 4060 laptop. ( I use studio driver because I'm a game dev indie ). So try this ;)

[PrettyFunkedUp]

Any nvidia players should roll back their drivers to Dec 2024 UNLESS they are on a rtx 50'series.
I dont think nvidia have sorted the problem for old cards when using the new driver. Even 4090s are affected, yes 4090s are old cards now btw.
I better get saving up for my new card LOL

Im only guessing at this but I suspect its to do with nvidia dropping 32bit phyx support entirely is somehow the culprit.
If you arent managing the refresh rate of your monitor or HIGHER just disable gsync, freesync and Vsync. Theyre just an unnecessary overhead otherwise.