You could try adjusting it and see what happens, what do you have to loose!
I have Dr Diff 3.23 gears in my recently rebuilt rear and it's quiet as a mouse.
The rebuilder was sure the gears were lower quality overseas gears and something about the cut.
He thought I would have to sacrifice pattern on one side (drive or coast)
And it would probably be noisey on the less concerning coast side.
When I went and picked it up he was very surprised that the pattern on both sides was great.