Update app.py

app.py

@@ -1277,6 +1277,10 @@ with gr.Blocks(title="LTX 2.3 Sync", css=css, theme=purple_citrus) as demo:
             height,
             width,
         ],
+        fn = generate_video,
+        cache_examples=True,
+        cache_mode="lazy",
+        outputs=[output_video, seed],
     )
 
     # ── Event handlers ───────────────────────────────────────────────────