diff --git a/apps/rmbg/service.py b/apps/rmbg/service.py
index e5b2c56..15e9abb 100644
--- a/apps/rmbg/service.py
+++ b/apps/rmbg/service.py
@@ -357,10 +357,10 @@ class RmbgService:
     
     def save_image_to_file(self, image):
         """保存图片到文件并返回URL"""
-        filename = f"rmbg_{uuid.uuid4().hex[:10]}.png"
+        filename = f"rmbg_{uuid.uuid4().hex[:10]}.webp"
         file_path = os.path.join(self.save_dir, filename)
 
-        image.save(file_path, format="PNG", optimize=False, compress_level=1)
+        image.save(file_path, format="WEBP", quality=85, method=6)
         image_url = f"{self.download_url}/{filename}"
         return image_url
 
diff --git a/apps/rmbg/settings.py b/apps/rmbg/settings.py
index d1ff0d3..e7180d7 100644
--- a/apps/rmbg/settings.py
+++ b/apps/rmbg/settings.py
@@ -36,7 +36,7 @@ class Settings(BaseSettings):
     # 队列聚合配置（方案B：批处理+队列模式）
     batch_collect_interval: float = 0.05  # 批处理收集间隔（秒），50ms收集一次，平衡延迟和吞吐量
     batch_collect_timeout: float = 0.5  # 批处理收集超时（秒），即使未满batch_size，500ms后也处理
-    request_timeout: float = 30.0  # 单个请求超时时间（秒）
+    request_timeout: float = 60.0  # 单个请求超时时间（秒）
     enable_queue_batch: bool = True  # 是否启用队列批处理模式（推荐开启）
 
     class Config: