Put in ear plugs and quit whining.
It is kind of a confidence thing. I remember the same people in undergrad who were the first out during an exam were always the same people to talk loudly about how supposedly easy it was. Then you'd find out later that they got a B- or something. After grades it becomes: "Yeah, it was totally easy. I mean, if I actually tried I would have aced it." Sure. bottom line: all that matters is how well you do. take the time you need and don't think about the assclowns who think it's cool to slap their books around 5 minutes before the end.
Yesterday people were leaving starting halfway into the 3 hour exam. I thought that was inSANE. Are you telling me that you said everything you could possibly say in half the time it took everyone else?