high management cpu load when enable kid control

RouterOS Beginner Basics
1

after enable kid control:
enable-kidcontrol.png
after disable kid control:
disable-kidcontrol.png
None of the other settings were changed. So it’s the bug about kid control?

Tried many times(disable kid control to see the cpu load then enable kid control to see the cpu again) and got the same result.

CHR 6.45.7

2

I guess it is normal since that feature creates dynamic firewall rules, queues etc…