about 2 years ago - AndrewT - Direct link
DXDIAG is a program you run from a command prompt or the Windows start menu 'run' dialog box (or 'search programs' in Windows 7 or later). 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 your Documents/Paradox/Stellaris/settings.txt and pdx_settings.txt .
From your Documents/Paradox/Stellaris/logs/ folder, attach system.log .

Please report the temperatures of your CPU and video (GPU)
1/ before starting the game up and
2/ after say 10 minutes' play.
If your PC's vendor has given you no way of reading temperatures, install
SPEEDFAN http://www.almico.com/sfdownload.php  
about 2 years ago - AndrewT - Direct link
So you are in Windowed mode, no Vsync, and desktop at 144hz.

Does the game run in fullScreen for you? If so can you please try changing to enable Vsync and set the game to 60hz?  
about 2 years ago - AndrewT - Direct link
Crimsonlyger said: Correct. The game does not run in fullscreen. It starts to launch and then immediately goes to not responding in task manager. Running in Windowed, or Windowed Bordlerless, at any refresh rate presents the same effect.
That is a shame, as full Screen would probably fix this I think. Your initial paused frame rates in the 400s are - staggering!

Crimsonlyger said: Edit: Turning Vsync on at any refresh rate, 144hz, 120hz, 85hz, and 60hz, all lock the frames at the appropriate refresh rate but the issue is still present.
Oh really, even in windowed mode? I thought that just used the Windows desktop refresh rate. I must be missing something here.

MisterOrrie said: Upon checking my FPS during games, as soon as the system/galaxy screen loads it’s running at 58-60 FPS. As soon as I unpause this is dropping to 30-40 FPS max.

Has this got something to do with the recent performance changes that were brought in with Federations to speed everyone else’s games speeds up?
I'm not sure this is the same issue. The OP doesn't have an fps issue he has a stuttering issue.

In any case, I wonder if @Guraan can help us here?