Im getting an FPS Drop when large fights occur around New Akali's Smokescreen

When akali's smoke goes down and there are a lot of abilities going on I notice an fps drop from 60 (capped) to 25-30. I mentioned this in a game and my teammate said her FPS goes from 80 to 50 in similar situations.

I have been banning the champion in my games, so I did not notice it until I played a game when she was allowed to be picked.

I think the fps drop im getting has something to do with the abilities passing through the smoke screen while akali is in it.