set concurrency_count=5

app.py

@@ -259,5 +259,5 @@ with gr.Blocks(
     outputs=[chatbot, state, click_state, chat_input, image_input],
     show_progress=False, queue=True)
     
-iface.queue(concurrency_count=1, api_open=False, max_size=10)
+iface.queue(concurrency_count=5, api_open=False, max_size=10)
 iface.launch(server_name="0.0.0.0", enable_queue=True)