FPS locking is not the right solution (although it is an easy one). Your animations are the ones that should be animated on twos, or threes, or fours, or whatever feels right for your game. That applies to animations, particles, etc. This leaves you the option to let other things run as fast as needed to feel smooth (for example: I do like the leaves falling slowly, the book opening, etc. Camera panning & moving would feel infinitely better at a 60 FPS.)

Unfortunately, playing a game is very different experience to watching a movie: take the example of Ghost of Tsushima, that despite having a Kurosawa mode, still accepts 60FPS and over.