Increase the concurrent limit. This Space is running on ZeroGPU so it can be easily scaled out.

opensora/serve/gradio_web_server.py

@@ -124,6 +124,6 @@ if __name__ == '__main__':
                  Textbox(label="model info"),
                  gr.Slider(label='seed')],
         title=title_markdown, description=DESCRIPTION, theme=gr.themes.Default(), css=block_css,
-        examples=examples, cache_examples=False
+        examples=examples, cache_examples=False, concurrency_limit = 10
     )
     demo.launch()