Could you maybe use their energy for something else? Try to refocus them by giving them other "important" stuff to work on? Aret hey competitive? Can you maybe

Could you maybe use their energy for something else? Try to refocus them by giving them other "important" stuff to work on? Aret hey competitive? Can you maybe set out daily, weekly and/or monthly goals for them to reach (on tasks you need them to do). If they are that good and they do it all in an houre, cool, let them be free and watch Netflix or something xD As long as the work is done (which is your goal) all is well... It's hard to give advice since it is probably one of those "you have to be there to understand it completely", but hopefully some of this jibber-jabber helps. But at the end of day if they're not a good fit for the work you need them to do, maybe they need to go. Maybe they'll find something their suites them better and maybe you can find people that suit you better. Long term, everyone is happier. If you are actively trying to find solutions to improve productivity and nothing works, maybe it's not you, it's them. If there are still things you haven't tried, try and see what happens.