Back up ONLY new or changed files

I have a new My Book, 4G. Yesterday, it backed up my C and D drives, and of course it took hours.
Today, for the routine update, it is taking just as long. Is it possible to have it only back up new or changed files, and if so, how do I set that function? How long should that type of back up take?

Second question – would I be better off using the Windows 10 back-up program with its File History feature?

I would appreciate any expert help.