Quicksilver is a mutant capable of moving and thinking at superhuman speeds. Originally capable of running at the speed of sound; exposure to the High Evolutionary's Isotope E made it possible for the character to run at supersonic speeds of up to Mach 10 and resist the effects of friction, reduced oxygen, and kinetic impact while moving at super-speeds. The character's speed allows him to perform feats such as create cyclone-strength winds; run up walls and cross bodies of water. It has been revealed that one of the reasons for his abrasive and impatient personality is that it seems to him that the rest of the world is moving in slow motion and that he is constantly waiting for it to catch up. As he once explained, "Have you ever had a day where you are at the ATM and you are in a hurry because you're running late but the person in front of you doesn't know how to use the ATM and they're taking forever? Now imagine what it must be like to spend every day surrounded by people who don't know how to use the ATM."