A camera’s shutter speed can affect the smoothness of of a subject or detailed. The slower the shutter speed, the smoother a subject will be presented. You can tell usually if the subject is moving. As you can see, here are some photos that I took at different shutter speeds:
I took the first photo at a slower shutter speed at 2/1 seconds and then eventually increased this value up to 3200/1 seconds.
Bilbo Photography 