Not only that, the amount of things you accomplish in that time span is far greater. So it really does turn you into a 10x engineer. If you're already very strong, experienced, pragmatic, etc.. then the stimulants will truly make you feel invincible.
So if you see a software engineer at a big company who is making 200k a year while simultaneously putting out dozens of open source projects a year, maintaining them, speaking at conferences, managing complex hobbies, etc... chances are that is due to a stimulant drug. I know very few people who are capable of that naturally.