Part of the issue you are having is scalability. I'm at work so I can't look at your armory page, but I would guess that you are not in great gear yet, correct? Mages generally start out low on the dps totem with subpar gear, but as their gear improves their dps rises very quickly. This is in part because spellpower has such a huge impact on all of your spells. The more your spellpower goes up, it will not only increase the amount your ffbolts are hitting for, but will also increase your ignites, and scales well with other talents as well. I have not gotten a chance to test out arcane since 3.08 but I hear very good things about it. You could try doing an arcane spec with a cast sequence something like arcane blast, arcane blast, arcane blast, arcane missles, arcane volley. I've never gotten the [nochanneled] command to work in a cast sequence macro though, so maybe someone else can help with this. The alternative rotation for arcane is very simple. Just alternate arcane blast, arcane volley. One down side to arcane may be that it does require a bit more micro b/c you pretty much have to pop evocate every 2 mins.