hello ,

Is there a way to monitor my cpu usage so i can get the average cpu usage for each core and the average cpu usage only for the encryption process?

You can read it out using SNMP
Here is a page describing MRTG (i do prefer Splunk)
https://www.mikrotik.com/testdocs/ros/2 ... /mrtg1.php

Real time monitoring tools-profile.
Also graphing - resources - cpu