Altered Time - your #1 World of Warcraft Mage resource!

Hi Mages, I need some help with my build/dps. I'm in lack of a lot of dps for my ilvl. And I can't find what I'm doing wrong. In our last raid I was at least 500 dps behind what I'd should done. In my last m+ I had the direct comparison with another icelance-mage and he was 28% percent in front with...