The Impulse 26 is a plastic boat. The motor and ESC is not brushless. Not what I would call "Fast electric".

To upgrade that boat you will have to buy new motor, esc, radio. At which point you would be better off with a Pursuit.

For a first boat I would recommend mono. Good all around hulls.

You gotta decide if you want to pay now or pay later. Most RTRs arent the best (value based ones) and the ones that are good are COSTLY.