Having issues running at 144hz refresh rate

[Mudbill]

I just can't get it to work. After removing the settings files it seems to perform worse for some reason.

Here's what I've tried so far:

• Removed all files from My Games/Main (it seems Steam re-downloads them though from the cloud, perhaps that's an issue. At least it downloads the saves).
  
• Starting the game after deleting the settings gives me the first start again, but the game is seemingly running at less than 30 FPS until I go to the settings, change the Refresh Rate from 60 to 144, and restart the game. Sometimes the RR is already set to 144. It seems to help by setting it down and back up, then restart. Even so, neither of these result in more than 60 FPS pushed out.
  
• Setting the RR to anything below 120 results in poorer and poorer performance. At 30, 60, 100, it seems the game runs at 30.
  
• I've tried restarting the game several times.
  
• Once, when I got 60 FPS from 100 RR, I disabled the Smooth Mouse, and it dropped to 30 FPS. Re-enabling it did not restore 60. Not sure what that was about. Perhaps random and unrelated.
  

Running public_beta of the game, with verified files.

As a complete side note, where did the Subtitles option go? Did it disappear with the public_beta, like the _supersecret did? Found it. Forgot it was in Audio options. Heard someone said it was in Game options.

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Edit: Tried a few more things:

• Tried running the Soma_NoSteam.exe. Results are the same.
  
• After doing a "first start" the RR is set to 144 (even though the game runs slowly).
  
• Using "Detect settings" will set the RR to 60 (same performance though).
  
• Setting the RR to 144 after detecting will make the game run faster (but more like 60, not 144).