Health care is so different there so I don't know what's possible. Can you get an appointment with a physio to do measurements and an assessment? My surgeon doesn't seem to like dealing with anything he can't cut, hammer or saw and didn't even examine my leg/joint when I saw him at 3 month point and PT had indicated likely glute med tear. Just said "Sounds about right - do what PT tells you to do." Also, getting the numbers down in black and white may spur surgeon on to take closer look.
I know you don't want to be told to be patient, but also recognize you're asking muscles to loosen up and do what they've never done. It seems like many on here are hoping to get to their pre-op state at 4 months and you need to get further. There may be something else that can be done by surgeon but he may need to see more info or longer timeframe before doing it.