Unfortunately, PotD is the fastest means of leveling and most people have obtained any rewards they may have wanted ages ago, you'll see speed runners unwilling to wait. What I usually do if I'm hunting for aetherpool is break off from the group and poke around. Only step into a room enough so you can see whether there are any silvers. In my experiences, even the speed runners will worm their way back for a silver if you find it. Basically, don't stick with the group the entire time. If you pick up any mobs, run 'em back to the group. Although, one or two you could handle yourself.