same here, macbook pro 16" started lagging with core i9 16gb , i totally regret buying a mac, i am a new user to apple, i tried to sell it but nobody wants it, It was a mistake, everything doesn't work as it supposed to, yeah the screen is amazing and the mousepad is great but i use a mouse and i use a monitre to do my wrok, ah apple.. Wish you were smarter .. its been 8 months now and still, i am trying to adapt, I will never buy from apple again, you guys are good with advertisment, and people fall victam for your products, i fall, my productivity fall, i can't focus on my tasks anymore, it was a waste of money.