5inch 6s too powerful

I built my first 5 inch with with 1860kv motors. 6s is too powerful as I'm repairing almost everyday I fly. Is it safe to run 4s on it? Or I should limit the throttle in betaflight?

I built my first 5 inch with with 1860kv motors. 6s is too powerful as I'm repairing almost everyday I fly. Is it safe to run 4s on it? Or I should limit the throttle in betaflight?