In my experience the problem is not they are too fast, they are too slow.

Honestly, their speed is just the right amount to make them bad. If they were faster, I could focus on following the code they are writing. But they take so much time for every edit that I tune out. On the other hand if they were slower, I could do other work while they are working, but they are done every 50 seconds to a few minutes which means I can't focus on other tasks.

If they did smaller faster changes it would probably be better.

Ideally though I would prefer them to be more autonomous, and the collaboration mode to be more like going over merge requests than pair programming. I ideally would like to have them take a task and go away for a few hours or even like 30 minutes.

The current loop, provide a task, wait 1 to 3 minutes, see a bunch of changes, provide guidance, repeat is the worst case scenario in my view.