Mrs sarah levine is half right re Long Island.
The first minyan is geared to the train schedule and is faster. The second minyan starts over an hour later and is not geared to the schedule. We’ve had retirees complain the first minyan is too fast. They were told adapt or go to the second minyan.
There is only one shul 🙂
I mixed my metaphors. Where i live there is no train. The four minyanim get progressively slower.
On LI — my understanding is that there are minyanim that are linked to the train schedule. If that is true — especially with minyanim that start pretty early — you will, by necessity, get faster minyanim.
I have never done the study — but it would appear to me that most shuls that i go to (which happen to be MO) are 30 minutes exactly.
In Passaic — there is a shul that has a sign on the amud directing the Shatz to take at least 6 minutes (I think) for shemoneh esrei.