What I am trying to achieve is to have a cube that rolls around an axis caused by a torque. When adding the torque and increasing its value, the rotation increases linearly. After a certain value, it seems like the rotation of cube is saturated and its not moving faster with high torque (100 and 1000 torque causing cube to rotate at same speed).
Note: I want to rotate cube using script not through animation.
I am attaching script and Inspector screenshot.