Honestly, that statement is just from a Movie-Databook. It was from the original Boruto Movie, but that was years ago (this wasn't made by Ukyo or Ikemoto BTW). Anyone who takes databook statements seriously when they just use hyperboles needs to sit down. She's not gonna be as talented as Sasuke, when Sasuke was #1 Rookie. She's not even #3.
Sarada's talented but it's just time to accept she's gonna be on her own league. What-ever she gets, she'll excel, but I would recommend to stop pressuring expectations. I was honestly thinking Boruto was gonna defeat him with a harem jutsu tbh.