No. Not at all. The only thing it could increase is the speed of the programs, such as your browser (firefox, internet explorer etc.) that access the internet. The main thing is your internet connection because your internet experience is based mainly on the speed of the connection. In other words, the speed in which your computer can communicate with your internet service provider.
If you would like to change your question, we can help you tackle any problems you might be experiencing but we will need information on your computer setup and internet setup.