I feel that llama's graphs are really good, though it can't exactly distinguish time taken in making a good move from an ordinary move. You never know, someone who appears to "take a long time to think" could well be playing other games like Roblox or something else rather than focusing his time into chess.
Blueemu's accuracy then comes into play, but even then it's going to be hard to tell how a player would manage his time (apart from the obvious time taken based on llama's software).
I wonder, why does everyone seem to make so many fast moves in rapid? I never never instantly play a move in rapid unless it's opening theory or a line I've already calculated. Even if the opponent blundered mate in one I take a couple seconds to verify that it actually is mate.
Anyways, could you do my games? Any time control is fine.
Imagine you are already up in material. Your opponent does not wish to resign, but wishes to play to mate. Say this happens.
(Edited)
You have a pretty obvious checkmate here. Well...who won't blitz out the moves? But in blitzing out the moves, we added the number of "fast moves" made in rapid to the tally. As such, we tend to have more "fast moves" than others because of this.
Also, not everyone treats rapid equally. Some wish to play seriously (living example: you). Some wish to play it just like blitz (living example: me). And others view it in perhaps yet another manner.
Still, I'm sure your graph will look similar to mine since llama already disproved my thoughts of having a unique graph.