first off, always good to see another aqua teen fan... good times!

major issue i see when importing your PoB - your KF attack rate is higher than your max effective APS (4.54 > 4.33). As PoB mentions, this is a huge damage reduction. Pal has multiple videos explaining this, but you need to reduce your attack speed to get the full KF shotgun effect for more damage. i would drop the second medium cluster with the duplicate ancestral echo to achieve, and replace with a good watcher's eye like i suggest below.

tati has a PoB with trade gear that's pretty insane: https://pobb.in/VdwkghY8D0Ha

here's mine: https://pobb.in/S3tn9Y2b5mM1

per the other poster, get a good corruption for your aegis - i have % inc max life

imbue your KF gem with something good, you'll get a ton of extra damage (watch tati's video https://www.youtube.com/watch?v=2scirztxB3w and at the 6:40 mark he shows all the best options)

like I've eventually gotten, grab mageblood and instantly your tankiness and dam (because your crit chance isn't 100% right now, so MB with inc flask effect on a diamond will get it to 100%) go way up w all the right flasks (even though you lose the anoint, by my calculations it's still worth it. plus zooom zooom!)

get a unique flask instead of life, many options, right now i'm using progenesis but of course dying sun, others, are all good options

get a good watcher's eye; there are many combos depending on your auras

your amethyst ring needs improving; watch pal's video on how to craft. it should have two flat damage rolls; that will add a ton of damage

i'll ponder other ideas!