Can you help me improve my damage output

Hi guys!
I’m lvl 85 sorc with ice shards + blizzard build, but I think my damage is kinda low.
Here is my build, items and paragon board - https:// maxroll.gg/d4/planner/jwfq00su

I’m doing not very good damage for my lvl or at least I think so.
I have seen sorcs on youtube with much better damage at my level.
The average numbers that I see on CC and Vulnerable are about 30k and the max that pop up are about 70k.

I can do lvl 42-45 ND without dying and pretty fast with that build, but I still think it should be better. For regular content and helltides I swap the chest armor with Raiment for stun. Sadly I cant survive with that chest in NDs above lvl 40.

The other problem is that I still have mana issues against single targets. When theres big group of mobs my mana stays full no matter how much I cast. But if the mobs are spread or Im against a boss or worst The Butcher my mana depletes very fast.

I’m really stuck and I don’t know if it’s my items or paragon board, but better items rarely drop, I’m even using some items from my early 70s lvl.

I will appreciate if someone can take a look and give me some advice what to change or what to look for.

Thanks and sorry for my english Im not a native speaker.
Cheers!

I’m at the same level and general build as you. I get about twice the damage you have here when everything is flowing well. I am in no way an expert but I did notice a few things I noticed when looking through your build.
Skill Tree:

  • Drop Frost bolt completely and put one extra point into Fire Bolt. +2 Points
  • Remove all but one point from frost nova, a point from icy veil, and the point in Fiery Surge. +8 Points.
  • Drop the extra points in ice armor bonuses and 2 of the points in Elemental Attunement. +12 Points
  • Build fire shield with one point out to Shimmering. Add fire shield to your casting to replace Frost Bolt 8 Points
  • Put 1 extra point in Devouring Blaze. - 7 points
  • Put in 4 points to get 3 ranks of Elemental Dominance - 3 points
  • Add one point to Cold Front and 2 to Snap Freeze
    Gear
  • You really need ranks in Ice Shards! In the mixed blizzard/shards build most of your damage comes from freezing with blizzard and triggering ice shards enchant.
  • Prioritize lucky hit gives mana, lucky hit chance, mana reduction. Your Amulet is almost perfect (i’d reroll the CC duration if you can). Your vulnerable and Crit hit/chance are good as well but great to prioritize. You also really want “Damage to burning enemies” if you can find it.
  • Change aspect of the Umbral for Prodigy’s Aspect. This helps solve your mana problem.
  • I find i don’t need FrostBlitz aspect and prefer the Aspect of Shared Misery
  • On a blizzard build drop the Icehearts and build in good defense. Move your Aspect of the Protector to these pants.
  • Move Glacial Aspect to your Amulet for the 50% bonus to base blizz damage.
  • Swap protecting aspect on your chest to Aspect of the Binding Embers. The immobilize will double dip into both Devouring Blaze and the Aspect of Control

Boards and Glyphs
Glyph Flamefeeder is huge in this build. I’d swap out Territorial for it.
Adept I had on and then have recently taken off in favor of Elementalist on the Enchantment board.
You want to work in the Exploit glyph for more vulnerable.
I’d think about the Fridgid Fate board for your last board here. Lucky hit and vulnerable damage.
If you get the Rainments all this goes out the window. Redo everything to get Static Surge

Hope that helps to give you a few ideas of where you can start to carve out a bit more damage. This is how i have my build and i’m sure there are others with better ideas out there.

Oh, Forgot a really important aspect. You need the Avalanche aspect. As you get more lucky hit it procs more often. At this point i have avalanche on for about 50% of my casts.