I think I could have coded the movement to adjust for mouse sens a bit better, I think different mice and DPI settings might be a part of why it's a lot harder for some people and less for others - e.g. it's really easy to control on my main computer but on another it's insanely difficult. I guess anyone that's really dedicated could adjust their mouse speed or DPI but yeah, I don't really expect anyone to do that. =P
Apologies to anyone that finds this game really difficult or hard to control, would have liked to polish it up a bit more but just didn't have time.