Best answer without seeing you in person.
What I would do:
Do a mini PT set for the leg, say one round for a neuromuscular warm up then do your run. To make sure your leg is primed to work well but not tired.
When you do your strength days 2x a do a full PT set for that leg, so get extra in on those strength days versus treadmill run days. And to the PT, before the Strength or as part of the strength dial back loads appropriately so the weaker leg is challenged.
Hope this helps. ( :
My apologies on not seeing this earlier, we had some additional snafu’s with the website this week and I did not get a notification of this post, so I missed it.