but it is not a must to run the cncli? why are u running it as auto? u can run it manually every time when you need it
To finalize this topic, after disabling the CNCLI services, my Core node works normal. Although I didn’t see any CPU bottleneck, 4GB memory might not be enough these services working on the background all the time.
Thanks to @Alexd1985 for helping me to investigate.