Only interesting point ...

in the entire movie for me related to when he went to the lab to get his fitness level appraised, was told to do some exercises to get his anaerobic level up, and we later saw him review his heart rate for an entire day including when he was robbing a bank (over which time his heart rate spiked for a long interval).

It made me wonder whether he wasn't using the activity of the bank robberies as a component of his training.