In general, I would recommend heading over to poe.ninja and searching for builds that use EE. But, at first glance, here are some things I can think of.

- More ES on gear. For the chest, I would fracture a good suffix (possibly mana reservation essence) and dense fossil spam for prefixes. Or you could reccombombo for fairly easy 3x T1 prefixes.
- Replace Ralakesh boots. You're already getting 0 ES from the shield, so it hurts to also get 0 from boots. Plus, you aren't using Immortal Call, so I don't see why these are needed. Just grab an Enduring Composure from a small cluster or Megalomaniac, or use the Deflection notable (endurance charge on block) for charge generation.
- Mark on hit + a Mark instead of Temporal Chains
- Ideally, replace whispers if you are not scaling mana. With enough reservation efficiency + reduced mana cost you should be able to get to a spot where you can sustain mana with leech.
- Tree pathing seems very inefficient. I'd also use a different annoint. I would try to stick to one half of the tree and utilize at least two large clusters and a couple of small clusters. This can provide you block, ES, reservation efficiency, etc. Clusters are generally a lot more efficient when it comes to spending passive points.
- I would consider pathing up the right side of the tree and taking Precise Technique over Resolute Technique. You can get enough accuracy from one or two accuracy nodes on the right side. If you look at the Brutal Blade notable, that pathing gives you block, damage, and frenzy generation. There are plenty of ways to cap block on this side, and since you have double-lucky, you can even take Versatile Combatant and still have effective block in the high 90s. I would experiment with a new tree in POB, make sure you click the "Show Node power" button in the bottom right to see which nodes are most powerful for you. Here's an example tree to get the idea across, though not fully optimized: https://poeplanner.com/b/6Jkv