|Am I to understand the you want to connect remotely to your friends computer so that you can use his high speed Internet.|
If that is the case then forget it, it wont work.
How are you going to connect to your friends computer?
With your slow Internet connection I assume.
In that case that is all you will ever have, a slow Internet connection.
A network connection is only as fast as the slowest link in the chain and while you are using your slow Internet connection, that is going to be the determining factor.