"not very responsive"? I'm responsive. I mutter things like, "Shit, why does it seem that the amount of lag in my computer's response to my inputs get worse and worse as its physical components get faster and faster."
I think you misunderstood what I meant by non-responsive. 10ms latency from click to action is nowhere near as noticeable as 10ms latency when dragging, because the mouse visibly lags behind.