Using a neutron star as a gravity slingshot? Pretty wild. The tidal forces would shred any craft long before you get a decent speed boost. You’d need to stay a light‑year or so away, then come in and escape, but the orbital dynamics would be insane. Even a modest approach would yank you off course, leaving you stranded in a relativistic dance with a dead star. It’s the kind of idea that excites the imagination, but in practice the risk far outweighs the speed gain. Maybe stick to asteroids for your next space‑race, unless you’ve got a teleport‑device in the works.