17 days ago - AndrewT - Direct link
This is mostly in late game play, is that right? Does the size of the galaxy matter?

Any mods in use?

DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/Stellaris/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/Stellaris/logs/ folder, attach here system.log , error.log .  
16 days ago - AndrewT - Direct link
Yes, most likely a modded game cannot be played without them - one of the risks of using them!

As you can see there are a LOT of errors in that log, presumably mostly from those mods. Whether they relate to the performance issue I cannot say.

Does this happen in a galaxy that's never had any mods used in it?

In that dxdiag i see Stellaris crashing in CELib_x64.dll . Am I right in thinking that is part of a 'training' (cheat) utility? If so we need to remove that from this machine while we work on this.  
15 days ago - AndrewT - Direct link
Just disabling them would have done, but yes please!  
14 days ago - AndrewT - Direct link
Oh, so this is a subtle effect that is worrying you! I took it from your thread title that this must have been a very intrusive problem.

I'm not sure how much we're going to be able to alleviate that, but let's give it a try.

Right click on stellaris.exe , properties, compatibility. Tick "disable fullScreen optimisations", untick anything else in there that is ticked, then apply and exit.

Then in the launcher set Display mode to fullScreen and try the game again (same save as above) - any better?

If it still happens, what CPU and GPU temperatures do you get while the problem is happening?  
13 days ago - AndrewT - Direct link
Can we please only test with campaigns that have never had any mods used in them, thanks.

MoppedKlaus said: UPDATE: After roughly 6 hours in the stuttering is getting worse and worse. even restarting the game only reduces the stuttering, until it gets really annoying..
Are the temps still below 60c then?  
12 days ago - AndrewT - Direct link
That's a fair point, your CPU is only modestly better than the minimum requirement:
UserBenchmark: AMD FX-6350 Six-Core vs Ryzen 7 3700X
If you run Task manager in Windows, Performance, and run the game in windowed mode, can you see the GPU, CPU or anything else spiking in time with th eproblem?  
11 days ago - AndrewT - Direct link
Your CPU would normally be 3.6ghz according to dxdiag so I assume you have OCing on the CPU at least - possibly other hardware too? What happens if you disable that, as a test?  
10 days ago - AndrewT - Direct link
I see. Do you have a source of hardware support you can turn to for help with that?  
9 days ago - AndrewT - Direct link
I have seen cases where OCing actually worsens performance, due to timing mismatches in various hardware components. This is definitely a long shot!

But I don't have anything else to suggest, I am sorry.