Ring 3 Doorbell install - 4 feet?

I am having problems positioning my new Ring 3 plus doorbell. I have not yet drilled the holes as it is a one shot deal (into masonry). My front door is 11 inches above the driveway/ground (up one step). Certainly positioning the doorbell camera 4 feet from the ground is way too low (would be only 3 feet 1 inch or about crotch level) , so I assume that means 4 feet from the bottom of a persons feet standing at the door correct? Next problem is that if I do go to 4 feet up from bottom of feet standing at door, my head is cut off in the video because I am 74 inches/ 6 feet 2 inches tall. Angling it down with wedge makes it worse. Do people angle it up in this scenario or does that affect motion detection. The street is about 40 feet from front door with typical suburban driveway. All the information I see is never to go above 48 inches due to motion detection issues. Appreciate any help you could give.