If you aren't using the widescreen fix, you can use the standalone FPS Uncap mod .
Kai kept the laptop balanced on his knees as the neon city spilled across his screen—slick streets, low-slung silhouettes, and a familiar thrum of bass from a game that had lived in his childhood like a secret anthem. Need for Speed: Underground 2 had always felt like more than nostalgia; it was a map of who he’d wanted to be at eighteen: reckless, brilliant with a wrench, and fluent in midnight.
If you are looking for a full "remastered" feel alongside 60 FPS, the community recommends the following additions: