perf

Assets/Scripts/Game/GameElements/Track/Trail.cs

@@ -2,7 +2,7 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using Ichni.RhythmGame.Beatmap;
-
+using UniRx;
 using UnityEngine;
 
 namespace Ichni.RhythmGame
@@ -50,6 +50,11 @@ namespace Ichni.RhythmGame
         {
             transformSubmodule = new TransformSubmodule(this);
         }
+
+        public override void AfterInitialize()
+        {
+            Observable.NextFrame().Subscribe(_=> trailRenderer.Clear());
+        }
     }
 
     public partial class Trail