Performance reviews are a waste of time. Standardize pay for everyone. If someone does something "extra" with way more work, then independently to that person

Performance reviews are a waste of time. Standardize pay for everyone. If someone does something "extra" with way more work, then independently to that person give them a bonus (i.e don't make bonuses a regular part of salary), or if they continue to show exceptional qualities, make them a lead and give them a pay bump.