Yeah,
I need a faster timer to time your reaction to events.
The meat of this discussion is probably a bit over my head as to why it might need to be in the engine but, in order for a reaction timer to be accurate, it would seem that it would need to be outside of the framerate of the game. Like if I have a game with an FPS of 60, but I would like to see your reaction in thousanths of a second. That would need to be in some other kind of loop than the main game loop, right?