My local NAS has an Intel Pentium J4205 processor. After login into my centos system the bash was sluggish.

After some search I found out, that the kernel had a bug arround power management which was solved by kernel 4.10. So I searched a way to update to newer LTE kernel (4.19).

Here the relevant links:

• https://www.pcworld.com/article/3173618/linux/kaby-lake-is-unleashed-with-kernel-410.html
• https://www.tecmint.com/install-upgrade-kernel-version-in-centos-7/
• https://wiki.centos.org/HowTos/Grub2