diff --git a/src/position_manager.py b/src/position_manager.py
index 1cbeec8..250ea4b 100644
--- a/src/position_manager.py
+++ b/src/position_manager.py
@@ -72,8 +72,9 @@ class PositionManager:
             if code in self.positions and self.positions[code].total_amount <= 0:
                 del self.positions[code]
                 logger.info(f"移除空持仓 - 策略: {self.strategy_name}, 代码: {code}")
-            
-            self.save_data()
+        
+        # 在锁之外异步保存数据
+        threading.Thread(target=self.save_data).start()
 
     def add_pending_order(
         self, order_id, code, price, amount, direction, order_type=ORDER_TYPE_LIMIT
@@ -92,7 +93,8 @@ class PositionManager:
                 f"数量: {amount}, 价格: {price}, 类型: {order_type}"
             )
 
-            self.save_data()
+        # 在锁之外异步保存数据
+        threading.Thread(target=self.save_data).start()
 
     def update_order_status(self, order_id, filled, new_status):
         with self._lock:
@@ -120,10 +122,17 @@ class PositionManager:
                         # 保留订单信息以供参考，但标记为已完成
                         del self.pending_orders[order_id]
                         logger.info(f"订单已删除 - ID: {order_id}, 状态: {new_status}")
-                self.save_data()
-                return True
-            
-            return False
+                
+                has_changes = True
+            else:
+                has_changes = False
+        
+        # 如果有修改，在锁外异步保存数据
+        if has_changes:
+            threading.Thread(target=self.save_data).start()
+            return True
+        
+        return False
 
     def get_pending_order(self, order_id) -> LocalOrder:
         """获取未完成委托信息
@@ -135,7 +144,9 @@ class PositionManager:
             dict: 委托信息，如果不存在返回None
         """
         with self._lock:
-            return self.pending_orders.get(order_id)
+            order = self.pending_orders.get(order_id)
+            # 如果找到订单，返回它的副本而不是直接引用
+            return order.copy() if order else None
 
     def get_pending_orders(self):
         """获取所有未完成委托
@@ -143,9 +154,19 @@ class PositionManager:
         Returns:
             dict: 订单ID到委托信息的映射
         """
+        # 创建临时变量存储锁内读取的数据
+        orders_copy = {}
         with self._lock:
-            # 返回副本以避免外部修改
-            return self.pending_orders.copy()
+            # 快速获取数据并立即释放锁
+            for order_id, order in self.pending_orders.items():
+                orders_copy[order_id] = order
+        
+        # 锁外创建副本，避免外部修改影响内部数据
+        result = {}
+        for order_id, order in orders_copy.items():
+            result[order_id] = order.copy() if hasattr(order, 'copy') else order
+        
+        return result
 
     def get_positions(self) -> Dict[str, LocalPosition]:
         """获取策略持仓
@@ -154,12 +175,23 @@ class PositionManager:
             Dict[str, LocalPosition]:
                 key为股票代码（str），value为LocalPosition对象，若无持仓则返回空字典。
         """
+        # 创建临时变量存储锁内读取的数据
+        positions_copy = {}
         with self._lock:
-            # 返回副本以避免外部修改
-            return self.positions.copy()
+            # 快速获取数据并立即释放锁
+            for code, pos in self.positions.items():
+                positions_copy[code] = pos
+        
+        # 锁外创建副本，避免外部修改影响内部数据
+        result = {}
+        for code, pos in positions_copy.items():
+            result[code] = LocalPosition(pos.code, pos.total_amount, pos.closeable_amount)
+        
+        return result
 
     def save_data(self):
         """保存策略数据"""
+        # 在锁内准备要保存的数据
         with self._lock:
             try:
                 # 将对象转换为可序列化的字典
@@ -205,90 +237,98 @@ class PositionManager:
                         ),
                     })
 
-                with open(self.data_path, "w") as f:
-                    json.dump(
-                        {
-                            "positions": positions_dict,
-                            "pending_orders": pending_orders_dict,
-                            "all_orders": all_orders_array,
-                        },
-                        f,
-                    )
-                logger.info("成功保存实盘策略数据")
+                # 准备好要保存的数据
+                data_to_save = {
+                    "positions": positions_dict,
+                    "pending_orders": pending_orders_dict,
+                    "all_orders": all_orders_array,
+                }
             except Exception as e:
-                logger.error(f"保存实盘策略数据失败: {str(e)}")
+                logger.error(f"准备保存数据失败: {str(e)}")
+                return
+        
+        # 锁外执行文件I/O操作
+        try:
+            with open(self.data_path, "w") as f:
+                json.dump(data_to_save, f)
+            logger.info("成功保存实盘策略数据")
+        except Exception as e:
+            logger.error(f"保存实盘策略数据失败: {str(e)}")
 
     def load_data(self):
         """加载策略数据"""
-        with self._lock:
-            try:
-                if os.path.exists(self.data_path):
-                    from datetime import datetime
+        try:
+            # 文件I/O操作在锁外执行
+            if os.path.exists(self.data_path):
+                from datetime import datetime
+                with open(self.data_path, "r") as f:
+                    data = json.load(f)
+                
+                # 在锁内更新内存中的数据结构
+                with self._lock:
+                    # 还原positions对象
+                    self.positions = {}
+                    positions_dict = data.get("positions", {})
+                    for code, pos_data in positions_dict.items():
+                        self.positions[code] = LocalPosition(
+                            pos_data["code"],
+                            int(pos_data["total_amount"]),
+                            int(pos_data["closeable_amount"]),
+                        )
 
-                    with open(self.data_path, "r") as f:
-                        data = json.load(f)
-
-                        # 还原positions对象
-                        self.positions = {}
-                        positions_dict = data.get("positions", {})
-                        for code, pos_data in positions_dict.items():
-                            self.positions[code] = LocalPosition(
-                                pos_data["code"],
-                                int(pos_data["total_amount"]),
-                                int(pos_data["closeable_amount"]),
-                            )
-
-                        # 还原pending_orders对象
-                        self.pending_orders = {}
-                        pending_orders_dict = data.get("pending_orders", {})
-                        for order_id, order_data in pending_orders_dict.items():
-                            order = LocalOrder(
-                                order_data["order_id"],
-                                order_data["code"],
-                                float(order_data["price"]),
-                                int(order_data["amount"]),
-                                order_data["direction"],
-                                order_data["order_type"],
-                                int(order_data["filled"]),
-                                order_data["status"],
-                            )
-                            if order_data.get("created_time"):
-                                try:
-                                    order.created_time = datetime.fromisoformat(
-                                        order_data["created_time"]
-                                    )
-                                except (ValueError, TypeError):
-                                    order.created_time = datetime.now()
-
-                            self.pending_orders[order_id] = order
-
-                        # 还原all_orders对象
-                        self.all_orders = []
-                        all_orders_array = data.get("all_orders", [])
-                        for order_data in all_orders_array:
-                            order = LocalOrder(
-                                order_data["order_id"],
-                                order_data["code"],
-                                float(order_data["price"]),
-                                int(order_data["amount"]),
-                                order_data["direction"],
-                                order_data["order_type"],
-                                created_time=datetime.fromisoformat(
+                    # 还原pending_orders对象
+                    self.pending_orders = {}
+                    pending_orders_dict = data.get("pending_orders", {})
+                    for order_id, order_data in pending_orders_dict.items():
+                        order = LocalOrder(
+                            order_data["order_id"],
+                            order_data["code"],
+                            float(order_data["price"]),
+                            int(order_data["amount"]),
+                            order_data["direction"],
+                            order_data["order_type"],
+                            int(order_data["filled"]),
+                            order_data["status"],
+                        )
+                        if order_data.get("created_time"):
+                            try:
+                                order.created_time = datetime.fromisoformat(
                                     order_data["created_time"]
-                                ) if order_data.get("created_time") else datetime.now()
-                            )
-                            self.all_orders.append(order)
+                                )
+                            except (ValueError, TypeError):
+                                order.created_time = datetime.now()
 
-                        logger.info("已加载实盘策略数据")
-                        logger.info(f"本策略: {self.strategy_name} 持仓股票个数: {len(self.positions)} 未完成委托数: {len(self.pending_orders)} 历史订单数: {len(self.all_orders)}")
-                else:
-                    logger.info(f"实盘策略数据文件不存在: {self.data_path}")
+                        self.pending_orders[order_id] = order
+
+                    # 还原all_orders对象
+                    self.all_orders = []
+                    all_orders_array = data.get("all_orders", [])
+                    for order_data in all_orders_array:
+                        order = LocalOrder(
+                            order_data["order_id"],
+                            order_data["code"],
+                            float(order_data["price"]),
+                            int(order_data["amount"]),
+                            order_data["direction"],
+                            order_data["order_type"],
+                            created_time=datetime.fromisoformat(
+                                order_data["created_time"]
+                            ) if order_data.get("created_time") else datetime.now()
+                        )
+                        self.all_orders.append(order)
+
+                logger.info("已加载实盘策略数据")
+                logger.info(f"本策略: {self.strategy_name} 持仓股票个数: {len(self.positions)} 未完成委托数: {len(self.pending_orders)} 历史订单数: {len(self.all_orders)}")
+            else:
+                logger.info(f"实盘策略数据文件不存在: {self.data_path}")
+                with self._lock:
                     self.positions = {}
                     self.pending_orders = {}
                     self.all_orders = []
-            except Exception as e:
-                logger.error(f"加载实盘策略数据失败: {str(e)}")
-                # 初始化空数据结构
+        except Exception as e:
+            logger.error(f"加载实盘策略数据失败: {str(e)}")
+            # 初始化空数据结构
+            with self._lock:
                 self.positions = {}
                 self.pending_orders = {}
                 self.all_orders = []
@@ -299,22 +339,51 @@ class PositionManager:
             self.positions = {}
             self.pending_orders = {}
             self.all_orders = []
-            self.save_data()
+        
+        # 在锁之外异步保存数据
+        threading.Thread(target=self.save_data).start()
 
     def update_closeable_amount(self):
         """更新可卖持仓"""
+        need_save = False
         with self._lock:
             for _, position in self.positions.items():
                 if position.closeable_amount != position.total_amount:
                     position.closeable_amount = position.total_amount
+                    need_save = True
+        
+        # 只有在有更改时才保存
+        if need_save:
+            threading.Thread(target=self.save_data).start()
 
     def clear_pending_orders(self):
         """清除所有未完成订单"""
         with self._lock:
-            self.pending_orders = {}
+            if self.pending_orders:  # 只有在有挂单时才清除并保存
+                self.pending_orders = {}
+                need_save = True
+            else:
+                need_save = False
+        
+        # 只有在有更改时才保存
+        if need_save:
+            threading.Thread(target=self.save_data).start()
 
     def get_all_orders(self):
-        """获取所有订单"""
+        """获取所有订单
+
+        Returns:
+            list: 所有订单列表的副本
+        """
+        # 创建临时变量存储锁内读取的数据
+        orders_copy = []
         with self._lock:
-            # 返回副本以避免外部修改
-            return self.all_orders.copy()
+            # 快速获取数据并立即释放锁
+            orders_copy = self.all_orders.copy()
+        
+        # 锁外创建深拷贝，避免外部修改影响内部数据
+        result = []
+        for order in orders_copy:
+            result.append(order.copy() if hasattr(order, 'copy') else order)
+        
+        return result