Originally Posted by
Flogre
Your DPS sounds fine, depending on how your RNG is. Without logs we can't evaluate your combustions, so just looking at your armory:
1) Switch your int/haste gems to int/crit.
2) Your haste is generally too high, unless you're shooting for a higher haste plateau, with 2 Piece T13 you should be aiming for 1505 haste
3) Even if you are shooting for a different haste plateau, you're a fair bit over hit cap. I'd recommend wowreforge.com or a reforge addon like reforgelite to be a bit more efficient with your stats.