As Boruto continued the story from the Naruto franchise, many fans were curious to see how the Hokage's son would evolve. He'd been working with Sasuke, with some training sessions from Naruto thrown in occasionally to build that father-son banter. No matter who the mentor was, though, Boruto seemed like he'd become a powerhouse as he was at a higher level than Naruto was at his kid's age.
Source:https://www.cbr.com/boruto-two-blue-vortex-tease-rasengan-evolution-scarily/