Screen share frame rate is low when Hardware Accelerated GPU Scheduling is enabled in Windows

Observed behaviour

The screen share frame rate is extremely low. When looking at the GPU in task manager under performance, you can see a direct correlation between the GPU compute utilisation going up and the encode utilisation going down (Data visible only on Nvidia GPUs).

Reproduction steps

Go to Windows settings in System > Display > Graphics.
Under "Advanced graphics settings" enable Hardware-accelerated GPU scheduling.
Play a game that uses high GPU utilisation. Use monitoring tool to ensure it is pinning GPU utilisation 98% or above.
Start a screen share for the game on the host device.
View the screen share on a secondary device.

Build information

Canary Desktop 2026.531.33409, Web 2026.531.34415, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-GB

Platform

Windows

Details

Expected behaviour The screen share should be smooth, matching the expected frame rate of the stream.