sounds like spyware. in fact, it is spyware. no program can make your computer faster or increase your internet connection's speed. the only things that can do these are adding more ram or upgrading to broadband internet, respectively.
given how fast your processor is, i'm sure you've got a bit of ram. as long as you've got at least 256, you're fine. if you play a lot of games and stuff, you might want to consider adding another stick of 128 or 256 mb.