You are having the same problem most shooters have when they switch from range shooting to action pistol shooting. They have not yet learned how to "transition" from target to target. Do web searches for "transition drills".
The main points up front are:
Good grip - control the recoil instead of letting recoil control you
Good trigger control - learn to squeeze the trigger quickly without disturbing sight picture. Pin it to the rear for each shot.
Good transition - lead with your eyes...find the next target with your eyes first followed immediately with the gun.
Don't wait to see the pin fall...go to the next pin and fire make up shots later if needed.
Practice, practice, practice
IDPA Member A00640
Founding Charter Member - Middle Tennessee Shooter's Club