Did you mean the tension set less?
I would do the exact opposite.....
I shoot my release with the heaviest springs I can get,cranked down the tension no way.
I shoot with the release in the first joints from the end of my fingers with my hand flat on the palm.
When I draw back,
I put my thumb on the trigger but on the housing as well,I give my thumbs brain something to hold on to,that way it isn't thinking by itself.
It has to be adjusted for only scapula motion.
Not for anything else.
You should be able to put your thumb on the trigger without it going off at all.
If it's misfiring you should adjust the caliper and the trigger to placement that cannot confuse the two.
Travel should be closer to zero than too much,if the travel is set too much it will create irratic shots for sure,ya just can't get any reality of when a release will fire when there is too much spongy .
Keep playing.You'll get it.