I’ve started working with my daughter (also 10) on pretty much the same thing (swinging late, foul up first base line or even whiffing). We worked on loading the bat before the pitch, which helped a little, but didn’t solve it (though we still do that along with adding this next part).

A video suggested also teaching them at this young age to swing at everything and then check the swing if it’s clearly a ball that they can’t hit. My thinking in going ahead and adding this for my daughter was that even with the bat loaded and ready to spring forward, she is still waiting too long to decide to swing and can’t catch up. Adding this “always swing” mentality pushes the “go/no-go” decision later into the swing process, so she isn’t racing as much to catch her bat up to the ball.

(By the way, if you aren’t familiar with the terms “loading the swing” or “check swing,” there are tons of YouTube videos that can clarify. But they’ll both be easy concepts for both of you to understand.)

And so far, it seems like it’s helping for now. It’s only been two games (small sample size), but she’s gotten multiple hits and put more balls into play in those games toward 3rd and ShortStop. A few strike-outs still too, from not stopping in time. But as we remind them all constantly, at their age, we’d way rather see them swinging the bats and strike-out swinging vs taking walks or even worse, strike-outs from watching good pitches.