Hi, looking at the poe.ninja ladder, most people doing the energy blade insiqistor build are using ice spear of splitting. By my testing you're doing less than half the damage you should be. I've also heard people complain about survivability (if this is you, you're using the wrong watchers eye), or mapping speed (you're using the wrong flasks, and don't have onslaught and tailwind).
I've put together a quick video to demonstrate what it should look like, to attempt to prove my point about the splitting gem, and to talk about the recovery and damage mechanics a bit here: https://www.youtube.com/watch?v=8DLNNkes5qM - I haven't actually done this before so please let me know what I've done wrong!
I've also included a PoB for people who want to get started on a budget here: https://pobb.in/hQbau55QHi01 - if you've got more currency my actual gear is here: https://pobb.in/ziwdfvHAkEdh and still can be improved in several ways.