Totally agree with "I perform better without pressure", I'm the same way as well...I have more time to think, react, and I'm generally in a happier state without pressure. Some of my best ideas have come to me during a leisurely stroll in a park, in the shower, etc.

It's funny though, some of the most famous athletes are the exact opposite, the "money players" as this article describes (ie, Michael Jordan always hitting his game winning shot at the buzzer).