Poor Audio/Video Quality in Microsoft Surface Hub 3

When Teams meetings are hosted from our large meeting rooms using Surface Hub 3 85 inches devices, internal participants (both in the room or within the building) experience no issues - audio and video are clear and stable. However, when external participants join these meetings (from outside our network), external participants consistently experience:

• Poor audio quality: Voices intermittently cut in and out, particularly when someone is speaking from a distance away from the Surface Hub.
• Unstable video: The camera appears to struggle with focus, causing visual disruptions.

This issue has been confirmed across multiple external users and locations, indicating it is not isolated to individual end-user setups.