Witch Hunter build help

Hey guys,
Im playing HC SSF without a build guide and just playing with what i find/like. I decided to go for Armour Break/Fire dmg Witch Hunter and so far its going ok (Cruel act1, lvl 50 char).
I made a maxroll planner with my current setup, any recommendations how to improve or change the build?
https://maxroll.gg/poe2/planner/affn0qq5

Map clear so fine so far, but boss dmg is a bit low.