I have learned to help the cruise control on slight grades, such as going up on an overpass. I press the accelerator down slightly which increases the speed slightly. I hold the accelerator down till I have topped the grade and then slowly take my foot off the accelerator. It takes a few tries to learn how to do it correctly.
But, I too think Ford should provide some individual tuning of the speed control as everybody has a different load. One standard computer program works for only an insignificant few. For the rest of us it would be nice if we had some control of the computer parameters.