This is the inherent friction of most overly “scientific” management systems. A decent line manager is aware of who on their team lifts up the team with glue & peer acceleration type soft work.

Systems that try to get too “objective” fail to recognize this as most KPIs are on direct outcomes that are easy to measure, though often less important.

No joke I once worked at a company with multi-category numeric ratings that then rolled up to a total rating score that had 2 decimal places of precision.