Unusual question, please, help me!

I have a question a bit unusual for you. I installed your template "the world news" and I added more GKN4 other modules and the site is rich in content and images rallentanola navigation. In your experience, what kind of server I should pperchè the site is faster than light? I use the Linux server aruba.it and I would request an upgrade of the minimum guaranteed band but I have no idea what to ask is minimal because the site becomes very fast? Flat 10 Mbit / s (guaranteed minimum 1Mbit / s) can go well or need more?

my portal: http://www.calciodonne.it

Walter