I have a amd 7700x it seems to run at 2.9 ghz to 4.4 ghz and all over the place i thought the stock default speed was 4.5ghz? Bios is updates and running this board win 10 pro 32 gigs of ram ddr5 6000 https://www.gigabyte.com/Motherboard/B650-AORUS-ELITE-AX-rev-1x#kf
Clockspeed is supposed to go up and down depending on how much CPU power is needed. It would not make much sense for CPU to run at high clockspeeds when there is nothing to do or you are browsing web.
Try running something like Cinebench to actually stress your CPU.