diff --git a/Assets/Scenes/SubWay.unity b/Assets/Scenes/SubWay.unity
index fc661bca4..68659813e 100644
--- a/Assets/Scenes/SubWay.unity
+++ b/Assets/Scenes/SubWay.unity
@@ -3324,7 +3324,7 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   initOnAwake: 0
-  defaultTime: 1
+  defaultTime: 0
   defaultWeather: 0
 --- !u!4 &1929645612
 Transform:
diff --git a/Assets/Scripts/SceneManagement/SpawnerKit/Spawner.cs b/Assets/Scripts/SceneManagement/SpawnerKit/Spawner.cs
index af51d69aa..564dc4285 100644
--- a/Assets/Scripts/SceneManagement/SpawnerKit/Spawner.cs
+++ b/Assets/Scripts/SceneManagement/SpawnerKit/Spawner.cs
@@ -27,6 +27,8 @@ namespace AibisDream
         protected float curInterval;
         protected float targetInterval;
 
+        protected bool isSpawning;
+
         private void Awake()
         {
             if (playOnAwake)
@@ -67,6 +69,7 @@ namespace AibisDream
                 default:
                     throw new ArgumentOutOfRangeException();
             }
+            isSpawning = true;
         }
         
         protected virtual ISelector<MobileObjectData> CreateSelector(IEnumerable<MobileObjectData> datas)
@@ -110,7 +113,10 @@ namespace AibisDream
         
         private void Update()
         {
-            OnUpdate();
+            if (isSpawning) 
+            {
+                OnUpdate();
+            }
         }
 
         protected virtual void OnUpdate()
diff --git a/Assets/interval_randomization.cs b/Assets/interval_randomization.cs
deleted file mode 100644
index 3fe1867b5..000000000
--- a/Assets/interval_randomization.cs
+++ /dev/null
@@ -1,39 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
-namespace AibisDream
-{
-    public class interval_randomization : StateMachineBehaviour
-    {
-        // OnStateEnter is called when a transition starts and the state machine starts to evaluate this state
-        //override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
-        //{
-        //    
-        //}
-
-        // OnStateUpdate is called on each Update frame between OnStateEnter and OnStateExit callbacks
-        //override public void OnStateUpdate(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
-        //{
-        //    
-        //}
-
-        // OnStateExit is called when a transition ends and the state machine finishes evaluating this state
-        //override public void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
-        //{
-        //    
-        //}
-
-        // OnStateMove is called right after Animator.OnAnimatorMove()
-        //override public void OnStateMove(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
-        //{
-        //    // Implement code that processes and affects root motion
-        //}
-
-        // OnStateIK is called right after Animator.OnAnimatorIK()
-        //override public void OnStateIK(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
-        //{
-        //    // Implement code that sets up animation IK (inverse kinematics)
-        //}
-    }
-}
diff --git a/Assets/interval_randomization.cs.meta b/Assets/interval_randomization.cs.meta
deleted file mode 100644
index a40830616..000000000
--- a/Assets/interval_randomization.cs.meta
+++ /dev/null
@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: fa45459b4dee1d9419da0d740064d2ba
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: