[MichaelBick]

Microcontrollers can respond to input much faster than a human could. The lag in reading input is barely noticed compared to the time taken off repetitive tasks. For example closed loop code on a shooter could reduce down time between shots and increase reliability. This makes the action of shooting much faster.

Also, open loop relies on human feedback or constants. Humans make mistakes and constants aren't as accurate as battery voltage decreases. Closed loop properly programmed will always be better than open loop code.