Since Apple changed the fan curves in Monterey so they go from minimum to maximum with nothing in between, I turned over all fan control to TG-Pro and wrote my own fan curve. When CPU load is normal, the fans never go higher than 3,500 RPM and there is no throttling. The basic fan control that uses CPU temperature sensors is working well. I have tried all the possible solutions: reload Monterey, reset the SMC, clean out any dust in the fans, turn off Sleep mode, delete all antivirus and malware apps, make more room on the SSD, delete all Chrome and Chrome Keystone software, create a guest user, load fewer browser add-ons or login items.

Window Server is always at the top of the CPU list, not matter what the computer is doing.Дў) I must use Firefox, but when I add together all the separate processes Firefox runs as shown in Activity Monitor, it alone is sometimes using close to 100% of the CPU.

But this too seems normal.Д®diting photographs on Luminar doesn't tax the CPU at all.ДЎ) Since everything ran fine on Big Sur, and these slow-downs only started happening after I upgraded to Monterey, there is something wrong with Monterey. Just copying a large file can send the sensors up to over 80 degrees for maybe 20 seconds before they go back down. At idle, the temps are in the mid-50s Centigrade. I am monitoring all 18 temperature sensors. Meanwhile, I have next to nothing running: Hulu streaming MSNBC on Firefox, E-Mail, Notifications. I understand that the macOS, through Core Duet, uses the CPU load to control Kernel Task and Window Server to throttle the computer and make it unusable if it thinks it is overheating. Ever since I updated from Big Sur to Monterey 12.2 on my 2018 MacBook Pro, 16 GB RAM, 1 TB SSD, I get periodic slow-downs, with choppy audio, frozen video, unresponsive keyboard, and menus that don't respond.

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