For Loop Freezing Client (May be a Photon-related issue)

I have a for loop to spawn X large asteroids and Y small asteroids, and I use a for loop to spawn until I have reached the limit of asteroids. The code is kind of weird, because I needed the asteroids to be synchronized but without photon views, and so I had to have the master client RPC for asteroids to spawn on everyone's clients. I also have a gameobject called "Offline" with a bool called "OfflineMode" so that when I check it things won't be instantiated with photon. On offline mode nothing freezes, but when it is instantiating things over the network the client freezes and crashes. I can't figure out which part of the for loop is doing it, or whether there are too many RPC calls and that's what's killing my computer. using UnityEngine; using System.Collections; using System.Collections.Generic;

 public class SectorManager : MonoBehaviour {
 
     public List <GameObject> LargeAsteroids;
     public List <GameObject> SmallAsteroids;
     public GameObject MainAsteroid;
     public GameObject MiscAsteroid;
     public int LargeAsteroidNumber;
     public int LargeAsteroidOffset;
     public int SmallAsteroidNumber;
     public int SmallAsteroidOffset;
     public PhotonView ThisPhotonView;
     public Manager ManagerScript;
     Vector3 RealPosition;
     Quaternion RealRotation;
     public float SpawnDelay;
     public float DesiredTime;
 
     // Use this for initialization
     void Start () {
         ThisPhotonView = GetComponent<PhotonView> ();
         ManagerScript = GameObject.Find ("Manager").GetComponent<Manager> ();
         DesiredTime = Time.deltaTime + SpawnDelay;
         SetupSector ();
     }
     
     // Update is called once per frame
     void Update () {
         
     }
 
     public void SetupSector()
     {
         if (!GameObject.Find ("Offline").GetComponent<OfflineMode> ().Offline) 
         {
             if (!PhotonNetwork.isMasterClient) 
             {
                 return;
             }
         }
         for(int A = 0; A < LargeAsteroidNumber; A ++)
         {
             Vector3 SpawnRotation = new Vector3 (Random.Range (2, 358), Random.Range (2, 358), Random.Range (2, 358));
             Vector3 SpawnPos = new Vector3 (Random.Range (transform.position.x - LargeAsteroidOffset, transform.position.x + LargeAsteroidOffset), Random.Range (transform.position.y - LargeAsteroidOffset, transform.position.y + LargeAsteroidOffset), Random.Range (transform.position.z - LargeAsteroidOffset, transform.position.z + LargeAsteroidOffset));
             if (!GameObject.Find ("Offline").GetComponent<OfflineMode> ().Offline) 
             {
                 ThisPhotonView.RPC ("SpawnLargeAsteroid", PhotonTargets.AllBuffered, SpawnPos, SpawnRotation);
             }
             else
             {
                 GameObject CurrentAsteroid = (GameObject)Instantiate (MainAsteroid, SpawnPos, Quaternion.Euler (SpawnRotation));
                 CurrentAsteroid.transform.parent = this.transform;
                 LargeAsteroids.Add (CurrentAsteroid);
             }
         }
     }
     [PunRPC]
     public void SpawnLargeAsteroid(Vector3 Position, Vector3 Rotation)
     {
         GameObject CurrentAsteroid = (GameObject)Instantiate(MainAsteroid, Position, Quaternion.Euler(Rotation));
         CurrentAsteroid.transform.parent = this.transform;
         LargeAsteroids.Add (CurrentAsteroid);
         for (int SA = 0; SA < SmallAsteroids; SA++)
             //SA is short for small asteroid.
         {
             Vector3 SpawnRotation = new Vector3 (Random.Range (2, 358), Random.Range (2, 358), Random.Range (2, 358));
             Vector3 SpawnPos = new Vector3 (Random.Range (CurrentAsteroid.transform.position.x - SmallAsteroidOffset, CurrentAsteroid.transform.position.x + SmallAsteroidOffset), Random.Range (CurrentAsteroid.transform.position.y - SmallAsteroidOffset, CurrentAsteroid.transform.position.y + SmallAsteroidOffset), Random.Range (CurrentAsteroid.transform.position.z - SmallAsteroidOffset, CurrentAsteroid.transform.position.z + SmallAsteroidOffset));
             ThisPhotonView.RPC ("SpawnSmallAsteroid", PhotonTargets.All, SpawnPos, Quaternion.Euler (SpawnRotation));
         }
     }
     [PunRPC]
     public void SpawnSmallAsteroid(Vector3 Position, Vector3 Rotation)
     {
         GameObject CurrentAsteroid = (GameObject)Instantiate(MiscAsteroid, Position, Quaternion.Euler(Rotation));
         SmallAsteroids.Add (CurrentAsteroid);
     }
 
     void OnPhotonSerializeView(PhotonStream Stream)
     {
         if (PhotonNetwork.isMasterClient)
         {
             foreach (GameObject Asteroid in LargeAsteroids) 
             {
                 Stream.SendNext (Asteroid.transform.position);
                 Stream.SendNext (Asteroid.transform.rotation);
             }
             foreach (GameObject Asteroid in SmallAsteroids) 
             {
                 Stream.SendNext (Asteroid.transform.position);
                 Stream.SendNext (Asteroid.transform.rotation);
             }
         } 
         else
         {
             foreach (GameObject Asteroid in LargeAsteroids) 
             {
                 RealPosition = (Vector3)Stream.ReceiveNext ();
                 RealRotation = (Quaternion)Stream.ReceiveNext ();
                 Asteroid.transform.position = Vector3.Slerp (Asteroid.transform.position, RealPosition, 0.1f);
                 Asteroid.transform.rotation = Quaternion.Slerp (Asteroid.transform.rotation, RealRotation, 0.1f);
             }
             foreach (GameObject Asteroid in SmallAsteroids) 
             {
                 RealPosition = (Vector3)Stream.ReceiveNext ();
                 RealRotation = (Quaternion)Stream.ReceiveNext ();
                 Asteroid.transform.position = Vector3.Slerp (Asteroid.transform.position, RealPosition, 0.1f);
                 Asteroid.transform.rotation = Quaternion.Slerp (Asteroid.transform.rotation, RealRotation, 0.1f);
             }
         }
     }
 }