System process - CPU usage over 20%

[Alex_Campioni]

I have a Surface 6 with CPU: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz 2.11 GHz, RAM 16 Gb.

Windows 11 build 22000.348

The system process uses always more than 20% of CPU.

I verified malware with Malwarebytes and with windows tools but any malware was found. 
I verified other elements like drivers but I didn't found the origin of the problem.

I hope that someone can help me

Alessandro 

[#2]

Since when this problem started?
Have you tried updating your Windows?
Are you using Malwarebytes or Microsoft Defender?
Try perform a Clean Boot and see if the problem persist?
Take a look at:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-...