protonscr

THE FINALS extreme fps drops while moving the mouse with ntsync

protonclosed
ValveSoftware/Proton#10091 · opened 2026-08-24 by slonkazoid · updated 2026-08-24 · 2 comments · github
Sslonkazoid 2026-08-24 github

Compatibility Report

  • Name of the game with compatibility issues: THE FINALS
  • Steam AppID of the game: 2073850

System Information

I confirm:

  • [x] that I haven't found an existing compatibility report for this game.
  • [x] that I have checked whether there are updates for my system available.

proton logs (warning: 1 MB download, 330 MB extracted): https://files.slonk.ing/XoPfU0VR.steam-2073850.log.zst

Concerning amount of SIGSYSes.

Symptoms

Extreme FPS drops while moving the mouse. See video below for an example.

Reproduction

https://files.slonk.ing/U7XghJ3s.test.mp4

Workarounds

Attempted:

  • polling rates 125, 500, 1000
  • PROTON_USE_SDL=1
  • PROTON_ENABLE_WAYLAND=1 (from Proton-GE)
  • -dx11
  • Proton Experimental and a git build of Proton-GE
  • borderless and exclusive fullscreen

Worked:

  • PROTON_NO_NTSYNC=1
Sslonkazoid 2026-08-24 github

there is no field for this but this is a multiseat setup with two GPUs, but the other one is at 0% utilization and this seat's monitor is plugged into the 9060 XT

Kkisak-valve maintainer 2026-08-24 github

Hello @slonkazoid, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/7317#issuecomment-5399524164.

Proton versions

Launch options

Upstream links