pigz which stands for Parallel Implementation of GZip, is a fully functional replacement for gzip that exploits multiple processors and multiple cores to the hilt when compressing data.
For Ubuntu 16.04 or early
apt update && apt install zlib1g-dev git clone https://github.com/madler/pigz.git cd pigz make mv pigz unpigz /usr/bin bash cd .. rm -r pigz
For Ubuntu 18.04 or later
sudo apt install pigz