When Boruto loses consciousness...that means he is asleep...and in other words...momoshiki takes over his consciousness. Even though he is still a teenager, if Momoshiki Otsutsuki takes over his consciousness then...His strength will increase drastically or even be much more deadly than other Otsutsuki.

because he wasn't satisfied fighting those two people,Now Boruto turns around under Momoshiki's control and looks at you.

"Come on, fight me, kid." He said with a challenging face.