Hot VS macs-fan-control

iMacs are sensitive and unusable if the room/environment temperature goes up 1-2 degrees. Once an iMac reaches temperatures that exceed its cooling capabilities, it will reduce the Scheduler Limit. This OS protection slows your computer down to a % of its actual performance. It's designed to reduce load down to a level that the computer can cope with, given its temperature situation. A tool called Hot will reveal the current scheduler limit, and you'll be able to verify this is the problem.

I'm using Hot: https://github.com/macmade/Hot

Use https://github.com/macmade/Hot to read temps instead. I don’t trust cleanmymac.

https://github.com/macmade/Hot show you the deets.

The Hot . app is great for showing how hot or cold my laptop is running, and whether it has throttled.

Hot: https://github.com/macmade/Hot

You can use the tool "Hot" (https://github.com/macmade/Hot) to check if we are investigating in the right direction.

Maybe Macs Fan Control is close enough https://crystalidea.com/macs-fan-control

You can make device cooler by manually turning on the fan and tinkering with the RPM of fan to make it run cooler when running games. Macboook by default does not turn on the Fans until its over 90 degree. You can use this free Fan control software. I have been using it and my mac runs cooler when gaming and such. https://crystalidea.com/macs-fan-control

install Macs Fan Control or TG Pro and see if you can get the fans to start up again after wake.

Get Macs fan control, the built in temperature for when the fans kicks in is very high. https://crystalidea.com/macs-fan-control

Knowing how one might reproduce an issue doesn’t mean the cause is failing hardware. Apple Diagnostics may be able to tell you more, and Macs Fan Control can tell you if the fans are in working order and you can make them spin faster if you want.

However if do have your heart set on the macbook make sure they have at least cleaned it out and repasted the CPU. It should take care of the overheating problem some what you can use like Mac's fan control to get a bit more cooling out of it https://crystalidea.com/macs-fan-control It's what I use on my 2012 mac book bro which is way older.