2 hrs is completely unacceptable. I've used DME about 10 times now....I have had only one instance of 85 mins....others times hovered around 65 mins. I've had some times when I got right on the tram from the gate area, then quickly made my way to the DME welcome area on level 1. There was no line at all, so spent about 3 mins giving info for checkin. When I got to my bus line (POP this particular time), I was one of the last to board the bus...barely slowed down after getting in the line. The bus left about 2 mins after I boarded. Then, POP was the first stop..usually is. That trip took me about 50 mins. It's not commonplace though. Usually, it takes a bit for the tram to come, then walk down to level 1, and find a short line which takes about 5-8 mins to get checked in, then off to the bus line where you could wait up to 20 mins but more likely 10 mins. Then, depending on where you are in the line, you may board and then wait for another 15 mins to get moving. Or you may be at the end of the boarding line and take off as soon as you are seated.
The routes are not etched in stone..they can change. Pop is usually the first stop but that one 85 min ride had Pop the last of three, with a ton of luggage being offloaded at each of the prior stops.