If you want to select Ubuntu mirror which works fastest for you follow these steps this is very important to any ubuntu user to download and install ubuntu packages fastest way.
If you want to make Gnome menus Faster in Ubuntu follow this procedure. You need to Edit the file /home/your_user_name/.gtkrc-2.0 file:
The more I use Ubuntu, the more I like it. That's not to say I was happy with the operating system's default start-up settings, however. Here are three Ubuntu tweaks that speed up the start of my workday.
Preload – is an application that practically pre-loads or better still caches your frequently used applications with the aim of speeding up their load-time. This application that works in the background deploys only unused RAM and does not consume your system memory as imagined.