My ability to do things very fast is currently hampered by my psychological need to multitask, take frequent and extended breaks, etc. With infinite willpower I would just do things very fast. I would take on more paid work.

Before I got ADD treatment I coped by working in a job where it's an asset rather than a liability: tech support. One cannot keep the same activity going very long in that environment because one is certain to be interrupted with something of higher priority, in short order.