Distance Cruise Control Automatic breaking

Hi guys,

I am new to the forum. Just got me new FX30d (I am in Europe, here we drive diesels as they consume less while gas-prices are very high).
Anyway, it’s a great car, just a couple of things I did not find out yet. Hope you can help!

About the Distance Cruise Control.
When you have it on, and you set a speed which is higher as your current speed; the car will accelerate towards the new speed. Nice.
When you have it on and you set a speed lower (by holding the right lever on your steering wheel), say 20mph or 20kph lower, the car will NOT break for you; it just release the power and slowely you will get to the desired speed.

Does anyone know how I can make the car break to go ‘quickly’ towards the desired lower speed, without me touching the break-pedal?