Feedback needed how to scale this Flicker Strike Build on low cost

I am still leveling up but hit a wall for damage. I can face tank most t16 map bosses due to energy shield leech and spell suppression, but can't reach the 1m DPS mark.

https://poe.ninja/poe1/pob/82039

Still low on budget. What can I do to quickly boost my damage to farm more currency?