Whenever I see stuff like this, I think of Joshua
trees in the Mojave Desert. A healthy Joshua tree will only make a flower on one of its branches for any given year... But an unhealthy (dying) Joshua tree will flower on all of its branches, all at once and die... On one hand it’s kinda sad, and yet, very beautiful on the other.
I suspect your little tree is overly eager or climate confused. I would dead head it and try to get it to redirect its focus on growth vs reproduction. I deadhead all my young orchard trees if they blossom too young, as well as other plants when I want them to focus on growth and
root development rather than reproduction, and they all do fine. Sometimes grafted trees think they are much older than they are, and will try to blossom way before they are sturdy
enough to bear fruit/seeds.
Good Luck!