Allow full CPU usage

[dustdfg]

Hello! I am building inside container a program it is very slow and I am ready to sacrifice usability of device to speed compliation. I usually run compilation with -j<max-cpu> and renice it to -20. After that device becomes slow and unusable but it speeds compilation.... When I did the same inside container (by finding process from container via htop) and reniced it and it doesn't lead to unusable system. I usually could barely move a mouse but know I am writing this message from browser... I've tried different options from https://docs.podman.io/en/stable/markdown/podman-update.1.html but can't force to allow cpu usage for 100%