Shattering concoction/Fragmentation rounds pathfinder build

I'm using shattering concoction and fragmentation rounds for insane clear. The concoction freezes everything and provides insane AOE damage and cold exposure. Once frozen, fragmentations rounds do bonkers damage to the frozen enemies.

For single target, I'm using a weapon swap to bow with ice shot. I need to improve the ST damage and your ideas are welcome.

Please provide your thoughts. I may run tornado shot with ice shot for ST damage. Clear is amazing; survivability is good because of enduring elixers.
https://maxroll.gg/poe2/planner/4gfix0vr