Sorc fps drops with On Cast/Fireball build

[Tvistra]

I am having huge fps drops since I setup 2 on cast(freeze and minion death) gems. When the Fireball procs Wildshards it becomes unplayable and I just hopeit registers I'm holding down a key to run away and pray I dont die.
https://steamusercontent-a.akamaihd.net/ugc/55832233435036462/A6835D708DFB94F3BC768DE85A8303921CE7BB14/

[Viscount]

same boat here. dont even try going into a breach, your computer will explode lol