1. Split Scene window and Game window in different tab group so that you can see them at once.
2. Move Window focus to Scene window
3. Press arrow keys on your keyboard to move view point
4. While view point is moving, use your mouse and move window focus to Game window
5. you see scene window view point keep moving with acceleration even after released your finger from arrow keys

*1 When you put your focus back to Scene window, it stops
*2 It happens no matter in state of Playing/Not Playing/Pausing