PoE lhuang58 builds

My current POB says my lightning conduit elementalist has 14M against pinnacle bosses. Here is my POB I definitely know in game damage will be different than sheet damage but I feel like I'm doing no where near that damage with even T16 bosses or few of the essence rares. Wonder if my POB configuration is incorrect or it's just how this build really is. Wrath will boost my damage a lot but I don't have enough sockets to fit wrath + divine blessing. Don't have currency for a enlighten 4 and replace herald of thunder.