Freezing Pulse build next steps?

I am level 43 using freezing pulse/lesser multiple projectiles/faster projectiles/added cold damage as my main attack. I have 6 passive points banked and here is my current tree. Not sure where to go next.

http://www.pathofexile.com/passive-skill-tree/AAAAAgABCGcNfBg8IcMo-ipNKlNBh0WdRnFKyFFMU1JXyVfhYpVvnn1bga-Cx4LkgwmKr5ARkNaTOprgrEexBbJwtAy3PrjQvSe-vMpK2L3aOuq66-75Zfno_go=

I want to get to iron reflexes but it seems like I should make my way up to the witch tree for Deep Wisdom, Heat and Soul, Frost walker and Elemental Dominion. Would it be more beneficial to head that way now or get iron reflexes out of the way first? I'm at the end of act 1 on cruel right now.
9 points available now, starting act 2

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