Sup /k/

I have a sig p229 and I think that the trigger reset isn't as good as it should be. It feels like after I fire a round, the trigger is a little 'slow' on going back to neutral. I've cleaned it and that helped at first but I'm not sure if it's still at its 100%. I know the sig has a spring under the removable grip that helps in resetting the trigger. Would that have anything to do with it?

Pic related. My pistol collection