AMD believes it has found the root cause of intermittent performance stutters that some Ryzen PC owners have been experiencing, saying that certain configurations are susceptible a quirk that shows up when the Firmware Trusted Platform Module (fTPM) option is enabled in the BIOS. The company is working on a fix, though it will be several weeks

Source: Hot Hardware – AMD Figures Out Why Some Ryzen PCs Stutter In Windows, Says Hang Tight 2 Months For A Fix