Act 1 Venomous Crabs overtuned

Act 1 venomous crabs seem like they're way overtuned. Most monsters in the area have slower telegraphed hits or projectiles that fire once every couple of seconds. These things show up in packs and fire multiple projectiles each per second of poison / chaos damage, which at this point in the game we have no way of defending against. Seems like these are not blockable or evadable too, though maybe it just feels this way because there are so many happening at once?

If 2 or 3 packs spawn near each other, it's like walking into chaos-damage machine gun fire. At that point it's more convenient to just take a death and let the area regenerate and spawn new packs. Or portal out and just start a new instance of the area.

Or you can use dodge to avoid their attacks.