In general, if you are getting a framerate of over 60 in a particular game, then you are good to go. However, one number can not be considered a good FPS. It is because of two main reasons. Firstly, it really depends on the individual and what framerate they are most comfortable with. Secondly, it depends on the type of game that you are playing. A particular framerate may be considered good for one game but not that good for some other one.
While a framerate of over 60 is considered the benchmark these days, if you have ever experienced a framerate of 144 FPS or greater than that, then you won’t be able to enjoy any game if it is running at 60 FPS. This is because video games are a lot smoother on higher framerates and have minimal input lag. While you may not be able to see the extra frames, you will definitely feel the high input lag if you go down from 144 to 60 FPS.
When it comes to types of video games, a framerate of 60 is fine for casual single-player games. However, because of the high amounts of input lag, it is not that great for competitive games. For competitive games, 144 FPS is best.
In conclusion, try not to go lower than the maximum framerate you have experienced, an average framerate of 60 is suitable for casual gaming, and try to get up to 144 FPS for competitive games.