dang AD door adjustment

[Fred n' Ethel]

Hi folks. I searched a bit, no find.
With the AD door shut, how much of the door weight is to be carried by the striker ?
The door is bouncing up and down and banging on the striker. If I slide the striker up as far as it will go to support the latch and keep it from banging, the door then hits at the top at the drip gutter.

Are the door hinges adjusted too high holding the door up too high at the rear edge ?
I live on a rough road and the banging is buggin me.
Thanks.