Controls>Common>View controls>Camera Smoothness
This issue is happening when you are in the gunner or commander’s sight while driving a tank and turning just the hull.
The great sight and everything that you are looking at behind it starts shaking and becomes so aggressive that it causes seizures + you can’t recognize anything because it is so blurry.
If you have this setting at anything but 0% you will be able to recreate this issue.
As far as I tested it it happens on every computer, settings, graphics…
It looks like a fundamental problem with Dagor Engen.