This is a tremendous benefit. Civilization would not exist without this ability. We also have tremendous potential to invent new movements. If you watch those deer browsing in your yard, you will probably not be able to distinguish one from another by its movement. The deer is moving in an instinctual way, which is the most efficient way possible for a deer to move, and which is pretty much the same as the way every other deer moves.
People are much less that way.
We learn how to move. What I am saying, in essence, is that one effect of our ability to make choices about how we move is that we frequently choose badly. We mistake habitual for natural. Simply readjusting your computer screen won't change that. Sometimes watching a movement in the mirror can provide surprising new information.