diff --git a/services/biz_service.py b/services/biz_service.py
index fe628dc..6841ff2 100644
--- a/services/biz_service.py
+++ b/services/biz_service.py
@@ -139,7 +139,7 @@ class BizService():
             logger.info("发送对话 %s", input_message)
             
             # 等待随机时间
-            await asyncio.sleep(random.uniform(5, 15))  
+            await asyncio.sleep(random.uniform(1.5, 3))  
 
     async def send_image_messagae_sync(self,token_id, app_id, agent_wxid, intersection_wxids, image_url):
         aeskey, cdnthumburl, cdnthumblength, cdnthumbheight, cdnthumbwidth, length, md5 = "", "", 0, 0, 0, 0, ""   
@@ -186,7 +186,7 @@ class BizService():
             logger.info("发送对话 %s", input_message)
             
             # 等待随机时间
-            await asyncio.sleep(random.uniform(5, 15))  
+            await asyncio.sleep(random.uniform(1.5, 3))  
 
     async def send_tts_message(self, token_id, app_id, agent_wxid, intersection_wxids, text):
         
@@ -209,7 +209,7 @@ class BizService():
                 logger.warning((f'{agent_wxid} 向 {t} 发送语音文本【{text}】出错'))
             
             # 等待随机时间
-            await asyncio.sleep(random.uniform(5, 15))  
+            await asyncio.sleep(random.uniform(1.5, 3))  
 
 
     async def send_file_message(self,token_id, app_id, agent_wxid, intersection_wxids, file_url):   
@@ -224,7 +224,7 @@ class BizService():
             await self.send_video_message(self, token_id, app_id, agent_wxid, intersection_wxids, file_url)
         else:
             await self.send_other_file_message(self, token_id, app_id, agent_wxid, intersection_wxids, file_url)
-    #time.sleep(random.uniform(5, 15))
+    #time.sleep(random.uniform(1.5, 3))
 
 
     async def send_video_message(self, token_id, app_id, agent_wxid, intersection_wxids, file_url):
@@ -257,7 +257,7 @@ class BizService():
                 logger.warning((f'{agent_wxid} 向 {t} 发送视频【{file_url}】{ret_msg}'))
             
             # 等待随机时间
-            await asyncio.sleep(random.uniform(5, 15))  
+            await asyncio.sleep(random.uniform(1.5, 3))  
 
     async def send_other_file_message(self, token_id, app_id, agent_wxid, intersection_wxids, file_url):
         print('send_otherfile_message')