u/ReaderSan

Hello guys i've got a couple of question for you.
this is my build at the moment: https://www.lastepochtools.com/planner/oXzp3693 .
I used the heartseeker frost build and "normal" use is good, nice clear speed.
I've met some problems tho:
I can't clear t4 lightless arbor yet (but i need that armor)
I can't clear the omen champion chain final node (it feels my dps vs multiple champion enemies is very low without trash around).
I don't have the idols yet, but even though I did target large and small (what i need) weaver idol prophecies within idol woven echo rewards, they don't drop. Am i doing something wrong?
Last but not least, +level to heartseeker is severely lacking, it doesn't even drop on magic armor item.
Any changes should I do?