Hello.

After playing for an hour or so my mouse begins to lag/stutter, gets progressively worse with time.
If I close displayfusion it fixes the issue right away.
Tried disabling taskbars without any change, no titlebar buttons.
Tried DF always fullscreen compatibility. (Though I didn't restart the game after toggling this)
Tried to update to beta 7, but same issue.
Disabling application hooks in compability feature worked, played for 4 hours without my mouse beginning to lag.

https://streamable.com/h0ay1o

Is there not perhaps an internal blocklist for programs known to cause issues? I'm just thinking of other users that might run into the issue. It took me quite a while before I realized it was DF causing it.

Hmmm.
The game has got javelin anticheat, and maybe some internal one.

The service "EA Javelin Anticheat" seems to point to C:\Program Files\EA\AC\EAAntiCheat.GameService.exe
But there is also one within the game folder G:\Games\Steam\steamapps\common\Battlefield 6\EAAntiCheat.GameServiceLauncher.exe

They were both running to begin with, but now it seems only the one in program files is running as a service.

https://steamcommunity.com/app/2807960/discussions/0/591784958347971269/
This seems to point towards the program files one being the one running, although it should be the one in the game folder. Also says if the game is installed on non windows drive it'll install the AC to program files.