Chaos Lich Lag resembles D3 Area damage bug

Need to report this issue. I am playing the standard contagion/dark effigy/essence drain lich.

I experience severe lag spikes when spreading contagion to multiple mobs. It reminds me a lot of D3 AREA DAMAGE LAG. The contagion will start spreading, especially with large packs of mobs and the totem will start putting poison on enemies and then the mobs will start to stutter step big time. The animations will slow way down, to a few frames every 30 seconds or so, then I will be disconnected and lose my map.

This is super frustrating, I have lost many citadels, why won't it let you back in the map when I have respawn attempts? Coming back into my hideout I have no exp loss so there was no death associated with this lag.

I know it's a contagion/effigy issue as when I switch to a minion build, I have zero of this type of lag. It has to do with the calculations from the server on either the dot, or the spreading of the dot. It is exactly like the d3 mob stuttering area damage lag.

Any suggestions?