I want to say that it's due to times, but I am usually in there in the mornings and the evenings during early peak hours, and instances typically range from sitting at 80 to 130 players. Entered Pagos at 26 and Pyros at 40. Currently 45 right now, but only reached that level last night. I have noticed that I can get more progress if I can get into a group during nm spawns (that's usually when I successfully find parties) because I'm more than happy to go along with the goal of the party (don't like to AFK myself). I'll see what happens tonight - maybe being 45 will help?