Moving RigidBody Smoothly

Hello all.

I'm trying to write a player movement script for my game and everything was working until i saw a really bad stuttering while moving.

YES, i was moving using Rigidbody.movepostition and I know using Kinematics in fixed update would fix it but I want the player to actually have physics and collide with walls and stuff. So I went on the internet and found out using AddForce might help with the stuttering/lag. but i don't know how to use it. Im really confused about all this.

Here's the code piece that's relevant to this topic:

     void Update() {
 
         float h = CrossPlatformInputManager.GetAxis("Horizontal");
         float v = CrossPlatformInputManager.GetAxis("Vertical");
 
         Move(h, v);
 
         if (h != 0 || v != 0)
         {
             isMoving = true;
             transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(movement), Time.deltaTime * rotationSpeed);
 
             //playerRigidBody.MoveRotation(transform.rotation = Quaternion.LookRotation(movement.normalized)); <---- Sharp turn
         }
         else
         {
             isMoving = false;
         }
 
     }
 
     void Awake() {
         playerRigidBody = GetComponent<Rigidbody>();
         anim = GetComponent<Animator>();
 
     }
 
     void FixedUpdate() {
 
         Animating();
     }
 
     void Move( float h, float v) {
         movement.Set(-v, 0f, h);
         movement = movement.normalized * Time.fixedDeltaTime * speed;
         playerRigidBody.AddForce(movement);
         //playerRigidBody.MovePosition(transform.position + movement); <---- Stuttering, Possible Cause?