Hi,

recently my Macbook Pro 2018 A1990 has some dumb issue with audio devices. The CPU renders 100% and makes the laptop impossible to use, creating a dummy kernel_task. It is really annoying and troublesome to work with.
If anyone knows how to fix it, I would be glad, I have tried almost everything. Disconnecting external monitor, switching the thunderbolt ports, disconnecting audio interface, cleaning SMC. Nothing helped.

As I have become used to MacOS and rely on Logic Pro and linux-style experience with less troubles. Is there anyone with new Macbook Pro with M1 Pro chip? How does rocksmith perform on these devices? Are there any issues or things that do not work as well as they should?
 

I would try to reinstall your Mac OS. Backup the things you want to keep on an external drive, google drive, backblaze or some other kind of medium. There are plenty of options.
Then follow this guide https://support.apple.com/en-us/HT204904 (follow the INTEL processor steps).