If FRTC is enabled, check it has not been reset to 60.
With the recent amd software changes, might be time to do a clean install of drivers?
Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..