Need help with boss damage - CoC Spark/Arc BM

Hey there,

I want to keep the Spark/Arc combo and would appreciate some feedback on my support gem setup and if there's anything I can do to improve boss damage. Comet isn't an option at the moment because I don't have the funds for a +5 cold/spell wand.

Profile - BigBoobyProtestantGirl - Path of Exile 2 - poe.ninja

Any feedback is appreciated! Thanks.