Your system information

• Steam client version (build number or date): 1751405894
• Distribution (e.g. Ubuntu): Arch Linux
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: Nvidia

Please describe your issue in as much detail as possible:

Using the newer "FPS details" causes GPU performance to drop from ~100% to ~50% in Counter Strike 2. I tried other games like Silent Hill 2 Remake and Dark Souls III and this didn't happen when playing them, but in Counter Strike 2 there is a clear impact.

I have included a video example - you can see the FPS on the top right and the GPU utilization graph. Toggling the "detailed FPS" option has a clear impact on GPU utilization and on the framerate. Notice how as soon as I toggle "detailed FPS", the GPU utilization graph plummets and stays at ~50%. When I go back to "single FPS values", the GPU usage jumps straight back up to ~90%.

https://youtu.be/6n_NlDGP1xU

Steps for reproducing this issue:

1. Open Counter Strike 2
2. Shift+tab and set the performance monitor to "detailed FPS"