PoE Mark of Submission, Cold, Duration builds

PoB: Currently have around 30-35 divs to upgrade, just not sure where to go from here, shield and ring maybe, but idk. Also is this good enough for ubers, or is it better to just spend the divs to reroll to some boss killer?

I'm liking the playstyle but I'm having a hard time planning on upgrades beyond better weapons/amulet. I also thought about switching to ignite vortex, using proliferation in the glove. The main thing is: What tips to improve my damage (I wanted to have something around 6\~7 million in guardians), and mainly, the movespeed (is it possible something around 120\~130%?). My current POB:

Evening. It's been a pretty smooth transition from cold dot to vortex ignite in the mid game. I've got all my implicits set on boots and gloves. I'm 100 percent spell supressed. &x200B; I gotta level up (92 atm) but i'm getting my ass kicked in t16s &x200B; I think my issues lie with Block/Spell Block. I can't fit in temptest shield yet. &x200B; How to I get to block cap? I'm kind of at a lost on how to get there. Thanks for your advise. &x200B;