Successful people do things faster. Not just because by doing things faster, you can complete them faster.
But more importantly, when you do things faster you can accomplish more within the same period of time.
An average person may spend 1 day doing 8 things but for a successful person, because he place emphasis on speed, he can accomplish 16.
Multiply that difference by months, years, and decades, and that’s the reason why successful people become massively successful while average people remain not.