A performance review generator is a tool that automates the writing of employee performance reviews. The point is to save managers and HR the hours that go into drafting reviews from scratch every cycle.
A useful one needs more than a text box. It should take the employee's name and role, scores across the specific skills you're assessing, strengths and growth areas, the tone you want, and the review type — annual, mid-year, 360, developmental, peer or self-assessment. Without those inputs the output reads generic, which is the main reason generated reviews get rejected.