Related article at apple.com: If kernel_task is using a large percentage of your Mac CPU
Some users may experience the following problem: a system process named kernel_task is using a large percentage of your CPU. What is worse: it can also cause large CPU frequency drop and throttling. The reason is overheating, which once detected, makes kernel task preemptively use up CPU to prevent further thermal issues.
Possible reasons and solutions:
This topic is a part of Macs Fan Control support articles. See more pages:
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