Using Quaternion.Slerp with VR motion controllers?,Using Slerp with VR Hands?

I am trying to add a Slerp rotation to my gun when pressing the trigger button on my vr controller since animations do not work with a rigidbody. My goal is to add recoil. However, when I am slerping the rotation it cancels it out and moves to the actual rotation of my motion controllers. How do I properly use Slerp with constant rotational updates of the controller?

 private void Shoot()
     {   
 
         // Effects
 
         fireSound.Play();
         StartCoroutine(FlashPlay());
 
         MuzzleFlash.Play();
         Smoke.Play();
 
         // Recoil /// GONNA FIX AND DO IT PROPERLY EVENTUALLY
  
         Quaternion identity = Quaternion.identity;
 
         Quaternion RecoilRotation = Quaternion.Euler(1.5f, transform.localRotation.y, 
         transform.localRotation.z);
         RecoilRotation = (identity *= RecoilRotation);
         transform.localRotation = Quaternion.Slerp(transform.localRotation, RecoilRotation, 1);
         
             
           
     }