Trouble with witch doctors in 2.3?

[Cmoidudu]

There is a lag problem at the moment, and it's not related to WDs (but WDs migth have their own problems too). When I'm destroying too many mobs at once in a Greater Rift, the game slows and eventually freezes.

I thought that was because of multi-boxing and heavy load on a single machine, but some streamers are experiencing that too...