This rate or amount of aggression is GAIN. I have no idea if it is adjustable sneaking into ETACS. I wouldn't know.
Skyblue - I don't notice this level of aggression and I do live in a hilly area. Because through all the vehicles I own / have owned, I have learned to avoid / mitigate this issue, by the following.
Say I have the cruise set at 60 mph. And for whatever reason I had to cancel it. Whatever speed I wind up at, I accelerate with my foot to within maybe 1 to 3 mph of my set speed before I press resume. The gain it has programmed also has a rate at which it adds throttle. So say I'm on the flat and level, I speed it up to ~58 mph with my foot and press the resume. It generally accelerates close to what I was doing, and is pleasant enough. But say I'm at ~58 mph and pulling a decent grade, if I press resume, it will start out like what it did in the previous scenario ... but it will also employ a rate of adding throttle until it is WOT. So going up a hill, if it doesn't get to the set speed quick enough, it keeps adding throttle. If it is steep enough, it will go WOT before it even speeds up those last 2 mph it needs.
It's not often I find myself in such a condition (going up a hill, nearly my set speed). But if I do, I just wait until I'm topping the hill to press resume. I don't want it flooring it, and annoying me, when flooring it is not necessary. I can live with 58 mph for a while until I top the hill.
7milesout
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View my fuel log 2020 Mirage ES 1.2 manual: 42.4 mpg (US) ... 18.0 km/L ... 5.6 L/100 km ... 50.9 mpg (Imp)