WARNING: Only follow these instructions if your system had at least 4GB memory!
Because then this tweak won't make them faster, but (much) slower.
Speed up your system a bit by placing /tmp on a tmpfs partition.
Any temporary files will not be placed on the hard disk anymore, but on a virtual RAM disk instead.
sudo cp -v /usr/share/systemd/tmp.mount /etc/systemd/system/ sudo systemctl enable tmp.mount
Reboot your computer.
After the reboot, check whether it works:
systemctl status tmp.mount
By default, a tmpfs partition has its maximum size set to half your total RAM.
The actual memory consumption depends on how much you fill it up, as a tmpfs partition doesn't consume any memory until it is actually needed.
sudo rm -v /etc/systemd/system/tmp.mount
Reboot.