Any pistol with only a 2-finger grip will require special gripping techniques to shoot well. Maintain conscious pressure on the backstrap, and if shooting 2-handed, upward pressure on the bottom of the trigger guard.
A gunsmith once put 4 shots into a 1/2 inch group with my Glock 26, with a called flyer on the other side of the target, at 25 yards, shooting from a supported kneeling position.
The factory sights tend to shoot very low, but once they are replaced, the gun can be shot more accurately than many full-size pistols.