Is AVCapture perform face tracking even if metadata output has not been added

I've noticed that my Catalyst app uses around 65% CPU when capturing from the camera, even when everything else is idle. Disabling camera capture drops the CPU usage to 0 (middle of graph in screenshot). I profiled using Instruments, and found that the most heavy stack trace involved face tracking (see attached screenshot), even though no metadata output was added for the camera. Is this a bug in AVFoundation?

Fortunately problem seems to be isolated to Catalyst or MacOS (12.3.1 (21E258)), does not reproduce on IOS.

Is AVCapture perform face tracking even if metadata output has not been added
 
 
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