Click,

You punch the trigger because you are scared to miss and do not trust your ability to hold on the target. When the pin does arrive on the " spot" you fire away before it has a chance to move. A different release IMO will not help.

Get away from the crowds and onlookers and learn to use back tension to slowly fire the trigger. Allow your pin to float and just get used to the surprise release. Do not worry if you miss or not at first - because you will.

When you learn to focus most, if not all of your thought on " aiming" it becomes much easier to keep the pin floating on the x and the slow squeze of the trigger comes on its own. There will be no reason to punch the trigger because the pin is going nowhere - it will stay on the x

It may take some time but your improvement in group size and consistency will be well worth it.

Give it a try