diff --git a/nodes/video.py b/nodes/video.py
index fbb9dcc..8fa07dd 100644
--- a/nodes/video.py
+++ b/nodes/video.py
@@ -276,7 +276,7 @@ class VideoChangeFPS:
         ff = ffmpy.FFmpeg(
             inputs={input_video: None},
             outputs={
-                output_temp: f"-y -vf fps={target_fps} -c:v libx264 -c:a aac"
+                output_temp: f"-y -vf fps={target_fps} -c:v libx264 -c:a aac -preset slow -crf 16"
             }
         )
         print("调整FPS命令:", ff.cmd)
@@ -307,7 +307,7 @@ class VideoChangeFPS:
                         [0:a]{filter_audio}[a]
                     "
                     -map "[v]" -map "[a]"
-                    -c:v libx264 -c:a aac
+                    -c:v libx264 -c:a aac -preset slow -crf 16
                 """
             }
         )