Possible details on what went wrong: https://www.reddit.com/r/macbookpro/comments/91256u/optimal_cpu_tuning_settings_for_i9_mbp_to_stop/ https://www.reddit.com/

Possible details on what went wrong: https://www.reddit.com/r/macbookpro/comments/91256u/optimal_cpu_tuning_settings_for_i9_mbp_to_stop/ https://www.reddit.com/r/macbookpro/comments/91256u/optimal_... TL;DR The CPU is stuck in a cycle of switching between minimum clock frequency and turbo speed.