Its hard to answer without sounding confusing, i dont know how much do you know about cameras, shutter speed is responsible for amount of blur during movement, when filming im using 24fps and shutter 60, sometimes 50 when i have no choice, in usa it would be 60 because of lights frequency, here in europe its 50 to get rid of pulsation of lights.
when you film in 24 then make sure you also export with the same fps cause if you dont then sofware will add its own blur between frames which looks very bad.
If you use 60fps for slow motion then dont go for lower shutter speed than 120, it will look bad, im usin 250 most of the time.