Any More Room for Improvement?

Base Pob my build was based on: https://pobb.in/CHwelHdlFm8_

What my build looks like rn: https://pobb.in/GeOhhqXqIZSt

Have I reached a ceiling or there is still a long way to go to raise dps? currently can do basically all contents except majority of lv85 bosses (narrowly won against 85 cortex)