Reduce CPU consumption on Proxmox

1. Login to the Proxmox host via the web interface by pressing on Shell
2. Install the package cpufrequtils via apt install cpufrequtils

   apt update && apt install cpufrequtils
   

3. See available governors via cpufreq-info -g

   cpufreq-info -g
   

4. See current governor

   cpufreq-info -p
   

5. Set the governor to powersave via cpufreq-set -g powersave

   cpufreq-set -g powersave
   

6. Make it persistent

   echo 'GOVERNOR="powersave"' |  tee /etc/default/cpufrequtils