As you probably know, we used to have a setting that replaced the 3D view in hangars with a still image. It was removed as part of a pass to simplify the settings menu by taking out lesser-used settings.
Not sure if bringing that setting back would be on the table, but in the meantime I suggest binding this toggle to a convenient key and toggling when you dock or undock. It takes effect instantly and you will probably forget you’re doing it.