Coleman A/C very noisy

We have a 2017 Sonic Lite 168VRB we purchased last August.  The few times we needed to run the A/C we found it extremely noisy compared to the wall unit in our previous Jayco 145RB.

Is this typical of the Coleman rooftop units?

Do others find this almost too noisy with their units?

Is there any way to quiet the unit down, particularly for sleeping?

Thanks in advance.