The bug is labled as an overheat and shutdown issue. Normal CPU's do not overheat when run at their designed speed. "Performance" does NOT mean "over clock". It simply means the cpu is running at it's highest (and least battery friendly) mode.
This should have nothing to do with an overheating problem.
The cpu is designed to run comfortably at it's rated speed so long as the cooling is adequate as designed.
No, it is NOT a cpu scaling problem. It is a head problem.
Booting in one mode or another is an entirely different issue. The laptop should NOT be overheating in ANY mode. Period.