Where I work, annual bonuses work partially like that, and partially based on personal performance. It's a target percent of your salary (around 10% depending on level), with multipliers for personal and company performance (ranging from 0-200%). This year my bonus was roughly 1/3 my base salary because the company performed well, and I received a good review. It certainly felt awesome, but at the same time, in a company of 100k+ employees, am I really personally responsible for how the company performs in any meaningful way?

What I'm saying is, I think the GP comment is right, that a bonus scheme is unlikely to materially affect performance.