Suggested by @ehristoforu

app.py

@@ -16,7 +16,7 @@ pipe.scheduler = DPMSolverSinglestepScheduler.from_config(pipe.scheduler.config,
 MAX_SEED = np.iinfo(np.int32).max
 MAX_IMAGE_SIZE = 4096
 
-@spaces.GPU(duration=20,queue=False)
+@spaces.GPU(duration=120,queue=False)
 def infer(prompt, negative_prompt, seed, randomize_seed, width, height, guidance_scale, num_inference_steps, progress=gr.Progress(track_tqdm=True)):
     if randomize_seed:
         seed = random.randint(0, MAX_SEED)        
@@ -39,7 +39,15 @@ examples = [
     "An alien grasping a sign board contain word 'Flash', detailed",
 ]
 
-with gr.Blocks() as demo:
+css = '''
+.gradio-container{max-width: 560px !important}
+h1{text-align:center}
+footer {
+    visibility: hidden
+}
+'''
+
+with gr.Blocks(title="SDXL Flash", css=css) as demo:
     with gr.Column():
         gr.Markdown("""# SDXL Flash
         ### Super fast text to Image Generator.
@@ -63,9 +71,10 @@ with gr.Blocks() as demo:
             
             negative_prompt = gr.Text(
                 label="Negative prompt",
-                max_lines=1,
+                max_lines=5,
+                lines=4,
                 placeholder="Enter a negative prompt",
-                value = "(deformed, distorted, disfigured:1.3), poorly drawn, bad anatomy, wrong anatomy, extra limb, missing limb, floating limbs, (mutated hands and fingers:1.4), disconnected limbs, mutation, mutated, ugly, disgusting, blurry, amputation, (NSFW:1.25)",
+                value = "(deformed, distorted, disfigured:1.3), poorly drawn, bad anatomy, wrong anatomy, extra limb, missing limb, floating limbs, (mutated hands and fingers:1.4), disconnected limbs, mutation, mutated, ugly, disgusting, blurry, amputation, NSFW",
             )
             
             seed = gr.Slider(
@@ -82,26 +91,26 @@ with gr.Blocks() as demo:
                 
                 width = gr.Slider(
                     label="Width",
-                    minimum=256,
+                    minimum=512,
                     maximum=MAX_IMAGE_SIZE,
-                    step=32,
-                    value=480,
+                    step=8,
+                    value=1024,
                 )
                 
                 height = gr.Slider(
                     label="Height",
-                    minimum=256,
+                    minimum=512,
                     maximum=MAX_IMAGE_SIZE,
-                    step=32,
-                    value=480,
+                    step=8,
+                    value=1024,
                 )
             
             with gr.Row():
                 
                 guidance_scale = gr.Slider(
                     label="Guidance scale",
-                    minimum=1.0,
-                    maximum=6.0,
+                    minimum=0.0,
+                    maximum=10.0,
                     step=0.1,
                     value=3.0,
                 )
@@ -125,4 +134,4 @@ with gr.Blocks() as demo:
         outputs = [result]
     )
 
-demo.queue().launch()
+demo.queue().launch(show_api=False)