Horrendous FPS dips since preseason patch went live.

I play on average 230-240 fps. Up until this patch, the game is now rendered unplayable. I dip to 50 fps, and more commonly, SINGLE DIGIT FPS. I'm going from 240 fps, to I kid you not, 01 fps or even sometimes 00. The game pauses while the dip happens and I can't do anything for an entire second. That happens while CSing, trading, team fights. Like hello? How is this still live 2-3 days after the patch?

edit: I've repaired, reinstalled, played with settings, nothing. I went from capped settings to all LOW and nothing changes. i7 7700k, 16 gigs of ram, 1070ti. I jump from this to FFXIV and OW and this is only happening on League.