Google Steady Mouse for a free download which allows you to tailor the speed/sensitivity of the keyboard.
Also there are options to make adjustments via the Microsoft Accessories/Ease of Access route (Windows7)
or similar on other versions of wndows.
I am a touch typist. and am constantly hitting the control button plus another key and getting unwanted shortcuts which I don't notice till I realise that the last few sentences have not registredt Does anyone know how to disable short cuts?