Add latency disclaimer

app.py

@@ -122,6 +122,7 @@ def synthesize_fn(prompt_audio_path, prompt_text, target_text):
 def main():
     with gr.Blocks(css=CUSTOM_CSS, title="VoXtream") as demo:
         gr.Markdown("# VoXtream TTS demo")
+        gr.Markdown("⚠️ The initial latency can be high due to deployment on ZeroGPU. For faster inference, please try local deployment. For more details, please visit [VoXtream GitHub repo](https://github.com/herimor/voxtream)")
 
         with gr.Row(equal_height=True, elem_id="cols"):
             with gr.Column(scale=1, elem_id="left-col"):