Managing excessively physical play behaviors

My older dog is ~70 lbs and is generally low energy, but is prone to zoomies.

Our younger dog is ~15 lbs and still growing.

We’ve been noticing that whenever both dogs are able to play off leash, the older dog gets so excited then starts zooming, and runs over the younger dog. If she escalates in excitement she’ll start mouthing too and I have to step in and stop the play. The pup seems to love it but it doesn’t seem safe at all.

Same deal if they’re on leash and I take them for a run, the older girl gets overexcited and tries to play excessively rough wit the pup.

My concern is that this happens frequently, and doesn’t seem to be decreasing in frequency at all despite play always ending whenever she gets the zoomies. I’d like them both to be able to play off leash, but I’m struggling to come up with a game plan for teaching her to not bully her little brother. It’s been 8 months now with her being put on leash and play ending whenever she bulldozes her little brother and it doesn’t seem to be affecting her behavior at all.

Both of them play well with other dogs and are receptive to corrections from other dogs, but they don’t ever correct each other so they are absolutely insane when playing together.