Huge performance drop (unplayable) after 40-50min when the cursor or camera is moving

[Smyl3]

Affected game title: Planetside 2

• Steam AppID of the game: 218230

System Information

• GPU: GTX 960
• Video driver version: nvidia 550.127.05
• Kernel version: 6.11.5-1-default
• Proton version: Experimental / GE-Proton9-19 Steam system information Steam Runtime Diagnostics Steam Beta Branch: Stable Client Steam Version: 1730853027 Steam Client Build Date: Tue, Nov 5 22:33 UTC -08:00 Steam Web Build Date: Wed, Nov 6 01:21 UTC -08:00 Steam API Version: SteamClient021

steam_log.zip

Symptoms

After like 40-50 minutes of playing when cursor or camera is moving by keyboard or mouse, results huge performance loss and the game become unplayable after that time. Without moving, the fps is smooth.

Workaround

add

LD_PRELOAD=

to launch options of the game

[kisak-valve]

Hello @Smyl3, this issue is already being tracked at https://github.com/ValveSoftware/steam-for-linux/issues/11446. Closing as a duplicate.