Venom Gyre Pathfinder Absolutely not working

Been playing POE for years, but never made a poison build. Tried Venom Gyre Pathfinder and I am getting destroyed early mapping.

I feel like poison is hardly doing any damage at all. Most of my damage is coming from my Herald of Agony. I stop attacking and their health barely goes down.

Could use some pointers on what to prioritize. Go for high base phys/Chaos damage? Does chaos damage over time multiplier only apply to crit strikes?

Only using a 5 link right now, but here are my links:
Venom Gyre
Deadly Ailments (80% less damage with hits scares me)
Void Manipulation
GMP/LMP
Added Chaos Damage/Unbound Ailments

Using Wasp Nest which I would think should destroy white map bosses, but fights take forever.

https://pastebin.com/ni58s866

Hi,

I have played poison build some time ago but give you some tip

1) Use Unbounds ailments instead of Deadly ailments
2) Upgrade gear, added phys/chaos on rings / amu, Dendrobate body, The Embalmer uniq gloves etc.

3) Use Despair Curse
4) Plague Bearer, Withering step gems
5) Maybe crit build and Perfect agony later but it requires high crit multi

Venom gyre doesn´t look like great singl target skill so maybe add Viper Strike

Poison builds are not the strongest builds out there now anyway.