How does performance bonus work? I don't get it

How does the performance bonus star work? I know that you get it when you've played well, but how come I don't get it despite being match mvp and over double positive? I know it's not based solely off of K/D... Is it because I'm playing a controller and have low assists? Here's the Lotus game's tracker for example https://tracker.gg/valorant/match/67696263-2746-4ad7-afed-65c6d79e8207