Game has glitchy lines across the whole screen

I updated the game 3 days ago and now have a major lag, no text ( in game play or CAS) after about 5 minutes of game play, static fuzz across the screen in CAS and freezes. It makes the game unplayable. I have no mods or CC, I'm running my mac on high sierra. I phoned EA and they say it's a known problem and they are working on a patch but any it seems the issue may have been going on a while for others. How long do patches take to develop?