A loyal Mac user for 15 years, and in that time I’ve had 5 MBP15 and two MB Air. Upgrading to Big Sur significantly reduced the performance of my current laptop (functioning like new for the past 4 years) and has now brought it to a point where it is barely usable. Way to drop the ball apple, lack of response to this issue has my mind made up, my next setup will be any high end laptop (other than Apple), Ubuntu and i3. You don’t innovate anymore and you treat your professional customers like they don’t matter. But Tim Apple keeps the stonks high so everyone is happy, right? Hope a selling fashion accessories keeps working out for you, so long and thanks for all the fish.