When grading expertise on any given task/process, the top level ("Master") is usually defined to be when the person can not even explain how she is doing it, everything is automated to such a degree that "the solution was obvious".
Magnus Carlsen used to play even faster than he is doing these days, but he explains that this is not because to takes him longer to figure out the best possible moves, but because he has to take the time afterwards to do all the required calculations to confirm his instinctual choices.
He has also explained after some really complicated end games where he has kept on playing for small advantages, eventually turning "obvious draws" into wins, that "it was very easy, I just had to play the only possible move".
I believe the foot/leg motor skills of a Neymar is comparable to those of a world champion orienteer: The best orienteers can run cross-country, through rocks, stones, windfall & vegetation, while studying an incredibly detailed map in order to navigate, making it impossible to focus on the ground while looking at the map. This means that the actual broken field running must use a small amount of brain capacity, all the movements are fully automated.
I know that Petter Thoresen (former multiple world champion) once was told to do a training race in Germany while a champion Kenyan cross country runner would tail him to check his technique: Even while orienteering Petter could run fast enough that the x-c runner was dropped after less than a mile.