This is pretty normal for any car with a manual tranny and 500+ horsepower. Your first 3 gears are gonna be hard to prevent severe wheel spin and keeping the nose of your car pointing forward under full acceleration.
A day of practice at a local drag strip focusing on your 60ft times may help you find the best launch technique. Mashing your gas pedal to the floor is a bad idea of a launch technique. A gentle feathering of the gas pedal and a proper release of the clutch are the key to keeping your tires within their limit of grip which isn't an easy task on street tires.