diff --git a/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs b/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs
index a4d5be1..e0d4fe2 100644
--- a/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs
+++ b/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs
@@ -61,7 +61,7 @@ namespace YooAsset
 			foreach (var operation in _operations)
 			{
 				if (IsBusy)
-					return;
+					break;
 
 				operation.Update();
 				if (operation.IsDone)
diff --git a/Assets/YooAsset/Runtime/YooAssets.cs b/Assets/YooAsset/Runtime/YooAssets.cs
index 1cd9c73..63d7819 100644
--- a/Assets/YooAsset/Runtime/YooAssets.cs
+++ b/Assets/YooAsset/Runtime/YooAssets.cs
@@ -200,10 +200,10 @@ namespace YooAsset
 		/// </summary>
 		public static void SetOperationSystemMaxTimeSlice(long milliseconds)
 		{
-			if (milliseconds < 30)
+			if (milliseconds < 10)
 			{
-				milliseconds = 30;
-				YooLogger.Warning($"MaxTimeSlice minimum value is 30 milliseconds.");
+				milliseconds = 10;
+				YooLogger.Warning($"MaxTimeSlice minimum value is 10 milliseconds.");
 			}
 			OperationSystem.MaxTimeSlice = milliseconds;
 		}