Allow for 20 parallel requests

app.py

@@ -286,7 +286,9 @@ def start_app():
                 fn=app.predict,
                 cache_examples="lazy",
             )
-
+    
+    demo.queue(default_concurrency_limit=20)
+    
     demo.launch(
         server_name="0.0.0.0",
         server_port=7860