I doubt anyone can give you a definitive answer of "yes it will help" but you have to assume that playing without adverts will give some kind of performance boost (Especially as it gets rid of those nasty flash adverts which seem to be the worst culprits.)
If you're hinting at the fact it could be your pc that can't handle the requirements of a FOD game (i.e. slow processor, lack of RAM, old graphics card) try downloading the pc version of the game and go onto the practice mode to see if it runs smoothly without adverts.