Verschlimmbesserung

It’s a german word and in English, it is loosely translated to bad improvement.
It is the process of spoiling something by overdoing it. The artist does it by giving a few extra unnecessary strokes to the painting. The musician does it by adding more notes, the chef by mixing needless spices, and so on.
The eagerness to perfect something and the will to go above and beyond sometimes is detrimental.
At times, the good is the thing to settle for and not hunt for the best one.