only generate 1 image

modules/app.py

@@ -32,7 +32,7 @@ def index():
 """
     return Response(content=content, media_type="text/html")
 
-@spaces.GPU(duration=60)
+@spaces.GPU(duration=30)
 def sd_on_gpu(prompt, negative_prompt, num_inference_steps, height, width, guidance_scale):
     start_time = time.time()
     response = pipeline(
@@ -42,7 +42,6 @@ def sd_on_gpu(prompt, negative_prompt, num_inference_steps, height, width, guida
         height=height,
         width=width,
         guidance_scale=guidance_scale,
-        num_images_per_prompt=10
     )
     run_time = time.time() - start_time
     return response, run_time