PoE Deadeye, Multiple Totems, Lightning builds

I started the league off with Aer0 cobra lash build and I'm barely in to maps but it is feeling just really awful. Mapping is just really painful. Cannot even attempt Affliction stuff because especially my single-target is abysmal. I know I'm missing uber lab and only have 4 link and shit gear etc. but I've played enough of this game I know something is seriously wrong and getting a few small upgrades is not gonna cut it. I am literally killing some regular rares for a minute or something if they are any tankier. Also if they do a

I am playing a trinity LA - Storm Rain, I'm really happy how it works. When I use 'The Interrogation' PoB shows better numbers (when i config brittle) but in game clear feels better without the cluster jewel. I don't know why really, is it just because of the chill/freeze? Also if u have some other suggestions or twists for my PoB it would make my day Thanks I don't know if its well configured Edit: fixed PoB

Rotblood Promise: Self curse with Temp chains to keep the HH buffs going (sacrifices Attack rate) - Compensates for lack of Solstice Vigil Crystallized Omniscience: <100% Ele Pen for every element, also rescapping without HH buffs, compensate for lack of Hyrri's Ire flat damage Inpulsa's Broken Heart: Explode when killing shocked enemies, 100% to shock + ignite + chill due to crit - Herald of Ice + Inpulsa Explosions = more AoE Clear Black Sun Crest: 30-45% increased omniscience - massive multi, needed to wear gear, Asenath's C