Boruto is arguably the second best prodigy after Itachi. Kakashi is nothing special without the sharingan, and as genin he only has imperfect chidori. I don't think Minato is much of a prodigy at Boruto age since he probably learn most of the techniques later on when grew older and the whole rasengan took him 3 years meanwhile Boruto was training rasengan only to ended up inventing a technique, Vanashing rasengan which he somehow unconsciously apply wind nature to it. Boruto then manage to perfect normal rasengan in such a short span like for a week. Lastly, Sasuke has two elements as genin, whereas Boruto has two asan academy which shows you huge gap of experiences. Sasuke was fast and efficient, so does Boruto.
