The queues suck but most DPS have resigned themselves to the fact that their queue will be longer. If you multitask you can still use the time waiting in queues productively. Farm Fates while you wait and get additional XP, money, and seals. You can also do levequests, and if your queue happens to pop while you're doing it, you can abandon a levequest and do it later. Or take up crafting or gathering. Mine shards while you're in queue and sell them on the MB for a bit of money. If you're not doing roulette and you're just running dungeons for XP, see if you have a tank or healer in your Free Company or one of your linkshells to help.