As far as survival go, I try to teleport into large packs and spam frost nova to proc APD while channeling arcane torrent/flame ward.
Is my gear too lacking, or is it a gameplay issue?
As a side note, I sometimes have the feeling that some mobs are avoiding my damage : I've been standing right next to mobs with 2 overlapping archon stacks, and the wave of force didn't do noticeable damage.
I would say - save some gear with vit rolls instead of CDR everywhere. With such low paragon you won't survive very well.
Overall fb archon has a lot of survival issues. And it "grows" slowly. You need a lot of things to make it work. First of all you need really good gear, secondly you need augments. FB archon damage is not as good with low sheet dps, since we are rolling off a lot to CDR. And also paragon. You need a lot of it to make fb archon shine.
You need to adjust your gameplay, when out of archon, go close to bigger packs of trash, make sure you have 4 stacks of EB. Nice amount of trash around you, 4 EB stacks and safe passage buff and you are fine. You dont have to be close to elites, make sure you move away before archon expires. Especialy if there are bad aphixes.
I did 90 this week second try, Didnt die once on trash, only once on boss becase of a lag.
Bosses are the biggest pain for archon. Especialy the bosses which do ranged oneshot abilities which are hard or impossible to dodge.