diff --git a/app/core/config.py b/app/core/config.py
index 1a8cd160..428f8ad1 100644
--- a/app/core/config.py
+++ b/app/core/config.py
@@ -85,8 +85,8 @@ class ConfigModel(BaseModel):
     DB_ECHO: bool = False
     # 数据库连接池类型，QueuePool, NullPool
     DB_POOL_TYPE: str = "QueuePool"
-    # 是否在获取连接时进行预先 ping 操作，默认关闭
-    DB_POOL_PRE_PING: bool = False
+    # 是否在获取连接时进行预先 ping 操作
+    DB_POOL_PRE_PING: bool = True
     # 数据库连接的回收时间（秒）
     DB_POOL_RECYCLE: int = 300
     # 数据库连接池获取连接的超时时间（秒）
diff --git a/app/core/event.py b/app/core/event.py
index 832eae99..a05c70d9 100644
--- a/app/core/event.py
+++ b/app/core/event.py
@@ -6,7 +6,6 @@ import threading
 import time
 import traceback
 import uuid
-from functools import lru_cache
 from queue import Empty, PriorityQueue
 from typing import Callable, Dict, List, Optional, Union
 
@@ -263,7 +262,6 @@ class EventManager(metaclass=Singleton):
         return handler_info
 
     @classmethod
-    @lru_cache(maxsize=1000)
     def __get_handler_identifier(cls, target: Union[Callable, type]) -> Optional[str]:
         """
         获取处理器或处理器类的唯一标识符，包括模块名和类名/方法名
@@ -279,7 +277,6 @@ class EventManager(metaclass=Singleton):
         return f"{module_name}.{qualname}"
 
     @classmethod
-    @lru_cache(maxsize=1000)
     def __get_class_from_callable(cls, handler: Callable) -> Optional[str]:
         """
         获取可调用对象所属类的唯一标识符
diff --git a/app/helper/subscribe.py b/app/helper/subscribe.py
index de40aab0..91f8347a 100644
--- a/app/helper/subscribe.py
+++ b/app/helper/subscribe.py
@@ -58,7 +58,7 @@ class SubscribeHelper(metaclass=Singleton):
         self.get_user_uuid()
         self.get_github_user()
 
-    @cached(maxsize=20, ttl=1800)
+    @cached(maxsize=5, ttl=1800)
     def get_statistic(self, stype: str, page: Optional[int] = 1, count: Optional[int] = 30) -> List[dict]:
         """
         获取订阅统计数据
diff --git a/app/modules/plex/plex.py b/app/modules/plex/plex.py
index 8e378c5d..b392a2ae 100644
--- a/app/modules/plex/plex.py
+++ b/app/modules/plex/plex.py
@@ -84,7 +84,7 @@ class Plex:
             logger.error(f"Authentication failed: {e}")
         return None
 
-    @cached(maxsize=100, ttl=86400)
+    @cached(maxsize=32, ttl=86400)
     def __get_library_images(self, library_key: str, mtype: int) -> Optional[List[str]]:
         """
         获取媒体服务器最近添加的媒体的图片列表
diff --git a/app/modules/themoviedb/tmdbv3api/objs/trending.py b/app/modules/themoviedb/tmdbv3api/objs/trending.py
index 2ea8476a..2688a138 100644
--- a/app/modules/themoviedb/tmdbv3api/objs/trending.py
+++ b/app/modules/themoviedb/tmdbv3api/objs/trending.py
@@ -1,12 +1,9 @@
-from app.core.cache import cached
-
 from ..tmdb import TMDb
 
 
 class Trending(TMDb):
     _urls = {"trending": "/trending/%s/%s"}
 
-    @cached(maxsize=1024, ttl=43200)
     def _trending(self, media_type="all", time_window="day", page=1):
         """
         Get trending, TTLCache 12 hours