It was good they tried to mix it up, but it didn't work out at all. I think just having a rule you must do a pit stop between lap 10 and the end of race would have achieved what they wanted without the ####ery.
I think they need to find an overpass area on this circuit, and the only way to do it would be to ditch the neveu chicane. I think ideally you keep the track right of the trees where the access road is( JFK ave), because it sets up a braking zone and double left. Faster cars would have enough of a run through the tunnel and down the hill to get overtakes done so you couldn't drive like a granny and not lose a place.
maps.app.goo.gl/QLePHkqe5i11TADt5
That, or every team gets an extra $5 million for a Monaco spec car half that's the size. Do the best you can with a tiny budget.