When I watched Everything Everywhere All At Once, I felt that was the best film made this year. But now I believe Bullet Train was by far best film this year, and I mean it. It bugs seeing people rating it poorly, like, grow up kids! Ofcourse it has sequences filled with gores and violence. People expecting a soft family friendly movie are abusing this movie, calling it too violent like what else do you expect it to be??
If you're watching a film already rated R then you clearly got no right to call it gory or grotesque.
And if you're fine with those sequences, give it a try. If you know your knowledge and taste of movies then this will live up to your expectations. Totally go for it.