Fast touch control and precise aiming

Hi there I am having difficulties with fast swipe touch control (I am testing new game on android, samsung galaxy s4) It may be hard do describe but my point is that I simply want to do some action which is "fastly" done in real world and based on direction do some actions, but because of fast finger movement the touch position is translated to a bit moved position(up to 2 cm) rather that position where I originallytouched the screen. What can be possible problems that may cause this and how to make it work? My guesses are: -update function is not enought fast to get points -unity has not as often gained information about touches -there must be other way around this And by fast I mean touch movements in under 0.5 seconds (this includes puting finger on screen moving finger and releasing it away from screen, so the movement itself is under like 0.3secs)