Hey,just follow some tips to make your speed up
-->Configure your browser so it won't display graphics, animations, sound, video or other multimedia content (see "How to Turn Off Sounds, Pictures or Video on Web Pages").
-->Surf when Internet traffic is low. Heaviest traffic is usually on weekends and evenings.
-->Use your cache effectively. "Cache" refers to storage space where your recently visited Web sites are saved. You may need to resize your cache allotment, or you may need to purge your cache periodically. Look through your browser's menus for items named Cache, Temporary Internet files and so on.
-->Upgrade your modem.
-->Consult with your Internet service provider to ensure that your modem is configured correctly.
-->Replace your telephone modem with a fast-access connection such as wave, ISDN, DSL, satellite, a cable modem.
and now check your connection speed here Scanmyspeed.com
even then your connection speed didnt get speed up then you better contact your service provider..

Well, if you are not running much applications on the background, the best possible option is to go and upgrade your internet subscription to a stronger plan. That means that you are going to get more power for a premium price.

That might not be worth it for you but in any case, you just don't expect a big boost through software installations and hardware changes.