Why working CPU from Omnitik on 250 Mhz

RouterOS Beginner Basics
1

Omnitik hangs out and environment temperature is not warm.
Why does CPU 250 Mhz speed?
No intensif cpu use.
RouterOS 6.27 firmware 3.22

2

you can repair it: :arrow_right:

/system routerboard settings set cpu-frequency=400
/system reboot