Arcane DPS lower than Elemental Shaman?

[Cptan]

I keep seeing other "real" Arcane Mages in LFR doing WAY more DPS than my mage

That's because "real" Arcane Mages dun use 2 step macro, IMO. To get high dps, mana burn is needed for arcane mage. The trick then is how to recover mana fast without loosing "fight time" to other dps. This lead to the following point

Also take into account that even if you have to move only a few times during a fight this really affects your arcane dmg

It really depends. For fights like DW kill or Hagara, that requires raid movement from point a to b to kill add, or to jump from platform to platform, I usually seize the chance to evocate and plan the next mana burn phase. The use of trinkets plus whatever means to increase intel/SP with mana burn phase is crucial.

Also, do not forget the aoe spell when there are many adds to kill. So a 2 step macro for the whole raid boss fight is kind of .... boring.

Know thy self, know thy enemy- Sun Tze