This is called “Bloom” effect. It is to simulate camera aperture when looking at bright/dark areas. When your camera pans to the interior cockpit, it’s usually darker than outside, so the aperture widens to let more light in, but that would mean letting too much light coming from the bright areas, making them seem brighter.
Only when you move your camera to the outside, the aperture gets smaller to limit the amount of light in, allowing you to see the outside, but at the expense of the interior.
If you don’t like this effect, just go to your Graphics options and turn off Bloom.