she should be..
boruto's talented edge is coming from Hinata due to Naruto's incompetence from his upbringing.. nice job there kurama, not only did you destroy his prodigal talent, you also deprived him of his childhood so he doesnt know how to properly communicate and know what to do with his children.
we all know hinata and how she is as a person. so there's that. you know, just your normal sexism from kishi. being burdened by being the hyuga heir, she's shy as a kid and had no intention of being a useful as a kid until she met naruto. even then, neji and hanabi completely overshadowed her at that point.
so that should explain boruto's untapped potential being wasted until sasuke got ahold of him.
now to sarada, she has a hard head mother who answers everything in brute force. and no father.
she knows her father to be the most talented man and even respected by the hokage.
obviously she had to start improvising to follow her father and escape the clutches that is sakura.
so she gets plenty of training from that. also she isnt spoiled like boruto who came from great clans and pampered.
no, her upbringing is harsh. sakura as a mother and a missing father.
so to get acknowledgement, she tries to excel at his field. also the occasional training from sasuke didnt hurt either.
sasuke growing up from a prestigous and powerful clan, he was trained by his family and most importantly by his super talented bro, itachi.
he knows how to train people. naruto on the other hand, not so much.. even konohamaru dealt a blow on that one. we all know how boruto's rasengan training went.
that should pretty much explain how sarada is SUPPOSE to be superior to boruto. I just hope there isnt another recycled bull going on again.
at the least, they should swap out.