change steps counts

app.py

@@ -22,7 +22,7 @@ def generate(prompt):
     if not prompt:
         return None, "请输入有效的提示词"
     try:
-        image = model(prompt, num_inference_steps=15).images[0]
+        image = model(prompt, num_inference_steps=4).images[0]
         return image, "生成成功!"
     except Exception as e:
         return None, f"生成失败: {str(e)}"