Update app.py

app.py

@@ -28,7 +28,7 @@ grad.Interface(fn=generate,
                inputs=txt,
                outputs=out,
                title="Promptist Demo",
-               description="Promptist is a prompt interface for Stable Diffusion v1-4 (https://huggingface.co/CompVis/stable-diffusion-v1-4) that optimizes user input into model-preferred prompts. The online demo at Hugging Face Spaces is using CPU, so slow generation speed would be expected. Please load the model locally with GPUs for faster generation.",
+               description="Promptist is a prompt interface for Stable Diffusion v1-4 (https://huggingface.co/CompVis/stable-diffusion-v1-4) that optimizes user input into model-preferred prompts. The online demo at Hugging Face Spaces is using CPU, so slow generation speed would be expected. Please load the model locally with GPUs for faster generation.\n\nNote: This is a version with beam_size=1 while the original demo uses beam_size=8. So there would be a difference in terms of performance, but this demo is much faster. Many thanks to @HughPH for pointing out this improvement.",
                examples=examples,
                allow_flagging='never',
                cache_examples=False,