Blight is unplayable due to perfomance drop

This league performance during Blight is slightly better than the previous league but it is still unplayable even with graphic settings to the lowest and disabling the sound, as some people recommend.
I don't have problems in normal maps and other events where there are high density of enemies, like Delirium, sometimes in Breach there is some drop but still playable.
It is obvious that Blight requires a complete rework because it is doesn't fit since they upgraded the graphic engine. Maybe reduce the density of the monsters or cap the visual effects of some towers.