diff --git a/config.default.ini b/config.default.ini
index e663d60d..b6e6127a 100644
--- a/config.default.ini
+++ b/config.default.ini
@@ -22,7 +22,7 @@ dom = 15
 [order]
 order_expiration_time = 8
 monitor_interval = 3
-untracked_interval = 12
+batch_size = 3
 
 [portfolio]
 risk_per_trade = 0.0004
diff --git a/core/actors/collector/_data.py b/core/actors/collector/_data.py
index 5875251b..a6e07c5f 100644
--- a/core/actors/collector/_data.py
+++ b/core/actors/collector/_data.py
@@ -34,7 +34,8 @@ async def stop(self):
         await self._queue.join()
 
         for task in list(self._tasks):
-            task.cancel()
+            if not task.done():
+                task.cancel()
 
         await self.wait_for_completion()
 
diff --git a/reef/_actor.py b/reef/_actor.py
index e02a879a..ff057e2e 100644
--- a/reef/_actor.py
+++ b/reef/_actor.py
@@ -47,7 +47,8 @@ def on_stop(self):
         self._stop_event.set()
 
         for task in list(self._tasks):
-            task.cancel()
+            if not task.done():
+                task.cancel()
 
         self._tasks.clear()
 
@@ -69,27 +70,43 @@ async def on_receive(self, event: NewMarketOrderReceived):
     async def _process_orders(self):
         expiration_time = self.order_config.get("expiration_time", 10)
         monitor_interval = self.order_config.get("monitor_interval", 10)
+        batch_size = self.order_config.get("batch_size", 4)
 
         try:
             while not self._stop_event.is_set():
-                pq_order = await self._order_queue.get()
+                queue_size = self._order_queue.qsize()
+                batch_size = min(queue_size, batch_size)
+       
+                orders = [
+                    await asyncio.wait_for(
+                        self._order_queue.get(), timeout=monitor_interval
+                    )
+                    for _ in range(batch_size)
+                ]
+
+                if not orders:
+                    continue
+
                 current_time = time.time()
+                tasks = []
 
-                if current_time - pq_order.timestamp > expiration_time:
-                    await self._cancel_order(
-                        pq_order.order_id, pq_order.symbol, pq_order.datasource
-                    )
-                else:
-                    sleep_time = expiration_time - (current_time - pq_order.timestamp)
+                for pq_order in orders:
+                    time_elapsed = current_time - pq_order.timestamp
 
-                    if sleep_time > 0:
-                        await asyncio.sleep(sleep_time)
+                    if time_elapsed > expiration_time:
+                        tasks.append(
+                            self._cancel_order(
+                                pq_order.order_id, pq_order.symbol, pq_order.datasource
+                            )
+                        )
+                    else:
+                        sleep_time = expiration_time - time_elapsed
+                        tasks.append(self._delayed_cancel_order(pq_order, sleep_time))
 
-                    await self._cancel_order(
-                        pq_order.order_id, pq_order.symbol, pq_order.datasource
-                    )
+                await asyncio.gather(*tasks)
 
-                self._order_queue.task_done()
+                for _ in orders:
+                    self._order_queue.task_done()
 
                 await asyncio.sleep(monitor_interval)
         except asyncio.CancelledError:
@@ -106,6 +123,14 @@ async def _cancel_order(
 
         logging.info(f"Order {order_id} for symbol {symbol.name} canceled.")
 
+    async def _delayed_cancel_order(self, pq_order: PQOrder, sleep_time: int):
+        if sleep_time > 0:
+            await asyncio.sleep(sleep_time)
+
+        await self._cancel_order(
+            pq_order.order_id, pq_order.symbol, pq_order.datasource
+        )
+
     async def _fetch_open_orders(self):
         services = [
             DataSourceType.BYBIT,