PoE Occultist, Cold, Duration, Simulacrum builds

Hey everyone, I've come across the Bronn's Lith Version of CoC Frostblink with Wintry Blast, and while it undoubtedly dishes out insane DPS, it's essentially a cast-on-death portal build that folds at the slightest glance. Inspired by the concept, I decided to tweak it into a more robust build that can handle Simulacrum wave 30 deathless, take on uber bosses, and breeze through mapping with just a single portal. It's a straightforward setup centered around CI, boasting relatively high armor, and utilizing Incandescent Heart for chaos conversion. Currently, I'm comfortably tackling Uber Shap

TL;DR| Pob link here: ---|--- Quick Explanation | A level 24 creeping frost skill gem is used to simulate the expected damage of a level 20 FB skill gem (based on comparisons with Searing Bond.) On Shako, I've added a 410% more damage over time modifier to simulate the level 30 version of the skill (based on searing bond's scaling.) There is a non Shako version under the Default tab, which is just a down-grade in practically every regard. Both use Supreme Ostentation, because league reasons. Build is fully built, but not optimized. There is almost certainly better

I made my cold dot occultist It is a pretty solid build. Which can easily farm most of the content. But I cannot complete ubers except uber shaper. I have 89 all resistance(thanks to +2 cold max resistance from a relic) 90% physical resistance. Damage is perfect for mapping. Even ok for 100% delirium. But it feels a bit slow on ubers. Now, I am trying to find a way to improve my DPS without sacrificing survivability. And sadly, I am out of ideas now. If someone has any suggestions for 50 divines budget I will be reall