Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
This policy controls the priority of the audio process on Windows. If this policy is enabled, the audio process will run with above normal priority. If this policy is disabled, the audio process will run with normal priority. If this policy is not configured, the default configuration for the audio process will be used. This policy is intended as a temporary measure to give enterprises the ability to run audio with higher priority to address certain performance issues with audio capture. This policy will be removed in the future.