A Windows feature meant to keep a device from overheating is causing Microsoft’s Surface Pro 6 and Surface Book 2 to run at a cripplingly slow speed. The problem seems to stem from a firmware update that was released on August 1st, according to TechRepublic.
Continue Reading . . . https://www.engadget.com/2019/08/15/microsoft-surface-throttling-400mhz/