Any attempt to "objectively" measure performance to influence salary will actively harm company culture. Unless your company is literally an assembly line, Godh

Any attempt to "objectively" measure performance to influence salary will actively harm company culture. Unless your company is literally an assembly line, Godhart's law takes over so quickly and your employees are going to spend their time abusing the metric. Just paying employees the market rate, while imperfect, is overwhelmingly preferable.