MacBook Pro grainy camera is NORMAL?

I just received my MacBook Pro 2 days ago. Replacing my 2013 MacBook Air. The camera is BAD. My old Mac's cam is way better than the so called MacBook Pro HD cam.

When I called the Apple support, I talked to 3 reps in different times. All were nice and helpful. A rep said this is might be the NORMAL quality! I told him that the old Mac is way better, he said I hear you.

Have you guys figured anything out?

[Re-Titled by Moderator]