One way I've found to calm the cruise control down a bit is to put it into "manual". Select "S" on the gear lever and then use one of the +/- buttons and it will go into a "manual" mode and show a small "m" in the display with the big S, and the ratio you are in.
It will stay in this ratio pretty much until you either slow down too much or you use the +/- buttons. I've tried it with cruise and it still stays in the "Sm" mode and seems to keep the ratio selected.
I confess I haven't explored the envelope of what it will and won't do in this setting, I'm still learning how it behaves, but "Sm" is very useful.
You do have to remember it is in this when you come to a stop and then pull away again, you have to change gear using the paddles or it just revs up in first, consequently I've got into the habit of slipping it into D before I come to a stop, and once on the go again I reset it to Sm as and when convenient or appropriate.
Play with it and see what you think.