加入很多新内容，这波一块交了

Assets/scripts/gamePlay_gameplay/GameManager.cs

@@ -326,6 +326,9 @@ public class GameManager : MonoBehaviour
     {
         Debug.Log("GameManager Start() initialized");
 
+        // Move first-hit one-time setup cost into scene load instead of the first judged note.
+        StartCoroutine(PrewarmGameplayFirstHitPath());
+
         // --- Initialize Statistics ---
         currentSong = BeatmapManager.pendingSongData ?? SongDataHolder.SelectedSongData;
         if (currentSong != null && !GameConfig.autoPlayEnabled)
@@ -489,6 +492,34 @@ public class GameManager : MonoBehaviour
         }
     }
 
+    private IEnumerator PrewarmGameplayFirstHitPath()
+    {
+        yield return null;
+
+        try
+        {
+            Note.PrewarmRuntimeCaches();
+            HoldNote.PrewarmRuntimeCaches();
+
+            var judgeFx = Animation_GenerateJudgementSituationPrefab.Instance
+                ?? FindAnyObjectByType<Animation_GenerateJudgementSituationPrefab>();
+            judgeFx?.PrewarmJudgePrefabs(1);
+
+            var fxEvent = effectEventController.Instance ?? FindAnyObjectByType<effectEventController>();
+            if (fxEvent != null && fxEvent.isActiveAndEnabled)
+            {
+                // Cache target and pre-create SmoothShake via OnEnable/Awake path already present.
+            }
+
+            var globalFx = globalNoteEffect.Instance ?? FindAnyObjectByType<globalNoteEffect>();
+            globalFx?.PrewarmRuntime();
+        }
+        catch (System.Exception ex)
+        {
+            Debug.LogWarning($"[GameManager] Gameplay prewarm failed: {ex}");
+        }
+    }
+
     private void Update()
     {
         // Detect Space or yellow note key to request start (only before gameplay starts)