From what I've read about matching the size of unit to the house - this sounds right.
The unit needs to run longer to achieve the set temperature, that way it can remove more of the humidity.
This era Ford engines were also famous for doing this due to valve guide seals breaking apart.
The old "umbrella" type seals would get hard and break apart, falling into the oil pan.
The tell on those was it would do it again afterward, until all the seals were replaced.
You will find there are some things that get the hive worked up here. And that there's very little consensus in general.
Oil viscosity is one topic that really gets a lot of differing opinions.
Additives are mostly snake oil is my opinion.
Edit - I want to mention that if you do read the...
You could ask your dealer what is so special about the products they are sticking you with.
How did they research what they are so adamant about using?
Unless you want to contribute extra to your dealer's retirement account, ask them to leave those out of your vehicle during service.
The only thing that's worse is when something dies under there.
I can remember a customer that had a pet snake crawl up under the dash, and into the body cavity in front of the passenger door - died there.
The dash had been removed so it sat with the doors open outside under a canopy for a...
It sounds too instantaneous on/off for a refrigerant noise to me.
Is there something like a hose or line that's against the body or firewall someplace?
Maybe it's a resonance from the compressor transferring to the body that wasn't there before something was routed a little differently.