Lightspeed (2006)

After an accident, a government agent Daniel Leight, gains the ability of super-speed and goes after an old friend turned Nemesis. Lightspeed's scaly nemesis is a mutated terrorist half-man, half-snake called Python. But when Leight's radiation treatments are sabotaged, he discovers that he has the ability to move at hyper speeds only by risking potentially fatal metabolic damage.