I am creating a game which the player collect coins and keeps going up. I need this coins to disappear when the user is too far.

What I am doing right now is adding a component to the coins with the following:

public class PlayerDistanceBasedDestroyer : MonoBehaviour
{
    private Transform target;

    void Awake()
    {
       this.target = GameObject.Find("Player").transform;
    }

    void LateUpdate ()
    {
       if ( (this.target.position - this.transform.position).y > PlayerFalling.FALLING_WARNING_DISTANCE )
       {
         ObjectPoolManager.DestroyPooled( gameObject );
       }
    }
}

Since the profiler showed that it was called a lot I changed this to the following:

public class PlayerDistanceBasedDestroyer : MonoBehaviour
{
    private Transform target;

    void Awake()
    {
       this.target = GameObject.Find("Player").transform;
    }

    void onEnable()
    {
       StartCoroutine("DestroyLogic");

    }

    void onDisable()
    {
       StopCoroutine("DestroyLogic");
    }


    private IEnumerator DestroyLogic()
    {
       while (true)
       {
         if ( (this.target.position - this.transform.position).y >
             PlayerFalling.FALLING_WARNING_DISTANCE )
         {
          ObjectPoolManager.DestroyPooled( gameObject );
         }

         yield return new WaitForSeconds(1f);
       }
    }
}

While testing this second implementation it felt slower (Nothing is said in the profiler). Do you think there is a better approach?