How do I slow the rotation speed of an object rotating to face the mouse position?

 How to do:

In Unity, you can slow the rotation speed of an object that is rotating to face the mouse position by using the Quaternion.RotateTowards method and specifying a smaller rotation speed. Here is an example of how you could do this:

// Get a reference to the object's Transform component

Transform transform = GetComponent<Transform>();

// Calculate the direction from the object to the mouse position

Vector3 direction = (Input.mousePosition - transform.position).normalized;

// Calculate the rotation needed to face the mouse position

Quaternion targetRotation = Quaternion.LookRotation(direction);

// Set the rotation speed to 0.5

float rotationSpeed = 0.5f;

// Rotate the object towards the target rotation with the specified speed

transform.rotation = Quaternion.RotateTowards(transform.rotation, targetRotation, rotationSpeed);

In the code above, we first get a reference to the object's Transform component. Then, we calculate the direction from the object to the mouse position and use the Quaternion.LookRotation method to calculate the rotation needed to face the mouse position.

Next, we specify a rotation speed of 0.5 (you can adjust this value to achieve the desired rotation speed) and use the Quaternion.RotateTowards method to rotate the object towards the target rotation at the specified speed. This will slow the rotation of the object and make it take longer to face the mouse position.