Incredibly laggy and choppy gameplay after 8/6/26 Update

I play on an M1 MacBook Air and it's been working like a dream for years, but after the most recent update/fix on August 6th, 2026 my game is laggy to the point where it's unplayable. Textures take forever to load, huge response delays when clicking through any of the ui and significant fps drops. I've tried repairing the game, I started new saves, a new Sims 4 documents folder, nothing has worked, I just get the same laggy gameplay.