Having shunted back and forth between DC and NYC in the past for more than three decades I find it hard to believe that Amtrak stops now are of 30 to 60 seconds in duration. Those times are faster than NYC subway stops as I recall.
What’s your route?
I'm counting the actual time at the at the platform with the doors open, not the pulling in/out. People are lined up at the door, they step off and that takes well under a minute, then people get on, again well under a minute and the train goes while people walk around looking for a seat. Maybe it's 2 minutes. It's not more under most circumstances.