Had the same problem with my 9mm Pro. I had to endure lectures from everyone about my lack trigger control.
The Pro has a fiber optic front sight. You can't really file on it. A plain blade front sight can be carefully filed down. Be careful because you can't unfile it.
To raise the POI (point of impact) you lower the front sight.
I simply bought Dawson Precision adjustable rear and matching front FO, which is another story.
You can go to the Dawson Precision site and they have the formula for calculating the necessary change.