Question Working at small scales with Unity physics

The game I'm making relies on rigidbody physics interactions between other objects and colliders. The objects in my game are scaled to their real-world size which can be between 0.5cm and 15cm which is very small for unity objects, and I'm thinking that it might be wise to scale all of the models I import by a factor of ten so that the smaller ones work better with physics and colliders.

Does unity actually do better with larger objects with physics and collisions or is it just that my parameters need adjusting?