Very Low fps.

Hi there!

I have script wich realizes creatures behaviour. If there are 3 or more monsters with this scripts FPS will become very low. If i delete all Update methods (Update(), FixedUpdate(), LateUpdate()) fps rises. So can u advice me please how to rewrite my code to archieve normal fps in my game.

     void Update()
     {
         if (gameObject.transform.rotation != spawnRotation)
         {
             //this.gameObject.transform.rotation = Quaternion.AngleAxis(rotOffset, Vector3.up);
         }
 
         if (networkView.isMine)
         {
             if (target != null && isAlive && startAggro && target.GetComponent<Player>().isAlive)
             {
                 Attack(target);
             }
         }
 
         Die();
 
         curHP = Mathf.Clamp(curHP, 0, maxHP);
 
         if (isAlive)
         {
             if (checkForReAggro && attackersList.Count > 1)
             {
                 StartCoroutine(AggroDontHitRecovery(attackersList.Last()));
 
                 if (toggleToOtherTarget)
                 {
                     AdjustTarget(attackersList.Last());
                     toggleToOtherTarget = false;
                 }
             }
 
             if (_bUpdateRestoreHpAfterRunaway)
             {
                 StartCoroutine(WaitAfterRunAwayForRestore());
                 _bUpdateRestoreHpAfterRunaway = false;
             }
 
             else
             {
                 _bUpdateRestoreHpAfterRunaway = false;
             }
         }
     }
 
     void LateUpdate()
     {
         if (_allowWaypointMove && isAlive && GameObject.Find("MainCamera").GetComponent<Server>().connected) //!It used to be in FixedUpdate 11.01.15 / 0:12:00
         {
             WaypointMovement();
         }
     }
 
     void FixedUpdate()
     {
 
         if (isAlive)
         {
             Aggro();
         }
 
         if (networkView.isMine)
         {
             networkView.RPC("AdjustThePos", RPCMode.AllBuffered, this.transform.position);
             networkView.RPC("AdjustTheRot", RPCMode.AllBuffered, this.transform.rotation);
         }
 
         if (GameObject.Find("MainCamera").GetComponent<Server>().connected && this.gameObject != null)
         {
             if (isAlive)
             {
                 networkView.RPC("AdjustSpeed", RPCMode.All, (transform.position - lastPos).magnitude);
                 networkView.RPC("SendFloat", RPCMode.All, "Speed", speed);
             }
         }
 
         if (target != null)
         {
             if (!(target.GetComponent<Player>().isAlive))
             {
                 networkView.RPC("KilledTarget", RPCMode.All);
             }
         }
     }