Have you shot the gun from a rest? Sounds like you might be pulling the shots low. Shooting from a rest will negate that and further eliminate any other shooter error from the equation.
Also, it appears that the laster is adjustable for windage and elevation:
See pg. 44 in your users manual for instructions.The InsightŪ Laser is equipped with adjustment screws for independent movement of the laser beam for both windage and elevation. Adjustment screws can be turned using the provided hex wrench.
Laser Adjustment Table (below): This table shows the direction of adjuster rotation (as viewed from above and behind the firearm) and the resultant direction of the laser beam and the shot group movement. ZEROING PROCEDURE
As initially received from the manufacturer, the InsightŪ Laser is factory preset to be nearly parallel with the barrel of the firearm and is ready to be zeroed via live fire.
Also, for the reasons mentioned above, make sure you fire the gun from a rest to sight in the laser