I had such feeling in the past, and was told to purchase CBT, which I did, and it confirmed my suspicion.
A few hours after completing an image backup, running another image backup results in a few gigabytes of changed data. I assume these are system files (swap, etc), because nothing else really changed on that disk.
Client is running over a slow internet connection. Even a few gigabytes take hours to complete and slow down the client’s overall internet connection to the point of frustration.
Is there a way to see exactly which files have changed?
Or do you have another idea how to solve this?