Hi. Look at this video I recorded. Its 8x times slower and I made it to show how unity deals with input . As you can see, it takes quite a bit of time for Unity to notice I started moving my cursor.. Why is it so slow? I have Vsync off,mouse script is second or first in script execution order, 60 stable fps(simple scene too). It is really bad, bad aim accuracy for a shooter game.Any other games I play have crisp mouse response. Why is this? Is there anything to do? I ve seen this question actually been asked before by others, but nobody wants to deal with it .Seems like devs want to dodge the question/issue. Also, check this out.