There's definitely something wrong with it. Thread here: https://forums.dovetailgames.com/threads/class-47-ntp-route-slow.16822/#post-83349
After the 2020 update I had hopes that the 47 might have improved. But unfortunately it hasn't, the class 40 still out performs it. A bit of a shame really since the loco and its route are part of the new package.
Tell me about it. I'm doing the post office scenario and the one time I got close to 60mph I had to immediately reduce speed back down to 15, and haven't even managed to get to 40 since. I'm currently 11 miles outside Huddersfield travelling at 39 MPH with 8 minutes to arrive on time. Assuming the game doesn't hang and crash before then.
