1 – Reduce Swappiness :
It is the operation of moving processes out of physical memory and onto the swap disk. Because disks are much slower than RAM, this can lead to slower response times for system and applications if processes are too aggressively moved out of memory.
If you are looking for good performance to your Linux machine, you can change swappiness value between 0 and 100. A recommended setting for swappiness is 10.
To check your current used Swappiness, run this command:
The default value is 60, to change it now :
sudo sysctl -w vm.swappiness=10
But changes will be just for this session.
To make changes permanent , edit this file:
sudo gedit /etc/sysctl.conf
Search for this line (if not present, just add it):
Save your file and exit.
Disabling Unnecessary Startup Applications :
There are many applications that starts with the system, and they are unneeded for that.
Starup Applications is used to unable and disable Startup applications.