A process named "ARMOURY CRATE User Session Helper" always consumes around 20% of CPU usage. The file location is under the "ARMOURT CRATE Service". Since Windows Defender does not recognize it as malware, so I think it is a official bug. Please fix it as fast as could.

My ARMOURY CRATE version:
Item Version
---- -------
Armoury Crate UWP App 3.1.5.0
ROG Live Service 1.1.6.0
AURA Service (Lighting Service) 3.04.22
Armoury Crate service 3.1.5
ASUS Aac_NBDT HAL 2.4.2.0
ASUS Keyboard HAL 1.0.45
ASUS MB Peripheral Products 1.0.31
ASUS Mouse HAL 1.0.48
AacAudioHal 1.2.10
AacDispaly 1.1.25


Another users comment link:
https://www.reddit.com/r/ASUSROG/comments/iuma7x/armoury_crate_user_session_helper_using_15_cpu_on/