The default swappiness (the system's inclination to use the swap) should be reduced

By default, the swappiness is at 60. You can check it with this terminal command:
cat /proc/sys/vm/swappiness

This is far too high a value for desktop use, especially on old computers with little RAM. It slows them down enormously. So I propose a default swappiness of 10, at least for the LXDE edition, which targets old computers.

Swappiness can be reduced by editing /etc/sysctl.conf. For example by adding these lines:
#
# Reduce the inclination to use the swap
vm.swappiness=10