Physics.SphereCast or a sphere trigger area?

Hey everyone :)

I'm currently working on the interaction in my game, however I have a small problem, since I thought it would be easier to just spherecast whenever I press the interaction button, however when I spherecast it seems to make the game lag quite a bit.

Now I'm wondering if it would be more optimal to have a sphere collider marked as trigger, then use the OnTriggerStay instead.

Which is the most optimal way? :3

Also, here is my code:

 void Interaction(){
         
         RaycastHit hit = new RaycastHit();
         Physics.SphereCast(transform.position,0.5f,transform.forward, out hit);
         
         interactionTimer = 0.0f;
         
         if(hit.collider != null){
         
             if(Vector3.Distance(hit.collider.gameObject.transform.position,transform.position) <= interactableDistance){
             
                 switch(hit.collider.gameObject.tag){
                 case "NPC":
                     hit.collider.gameObject.GetComponent<NPC>().Action();
                     print ("YEAH!");
                     break;
                 case "Chest":
                     hit.collider.gameObject.GetComponent<Chest>().Action();
                     break;
                 case "Interactable":
                     hit.collider.gameObject.GetComponent<Interactable>().Action();
                     break;
                 }
             }
             
         }
     }