Fast Shot (Fallout: New Vegas)

Fast Shot is a trait

Effects
This trait increases fire rate by 20% and reduces AP costs by 20%, but increases weapon spread and reduces V.A.T.S. accuracy by 20%, with energy weapons and guns.

Accuracy penalty can be completely negated by the Gunslinger and Commando perks, (0.8 x 1.25 = 1). Note that this trait will reduce maximum accuracy in V.A.T.S. to 76% (not the case on PC).