Kernel takes 500% of cpu

I have 820-00165 Board, Macbook is very slow and Fan is spinning at high speed. I ran Hardware test and HwMonitor sensors shows Heatpipe 2 & 3 are at 128 degrees , Heatpipe outgoing air is also at 128 degree. No Corrosion near u5800, u5810, u5620. Any Suggestion please?

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FaceTime also doesn’t work because apparently it’s too hot when it clearly isn’t

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