Update app.py

app.py

@@ -73,9 +73,9 @@ def generate(
     custom_width: int = 1024,
     custom_height: int = 1024,
     guidance_scale: float = 7.0,
-    num_inference_steps: int = 28,
-    sampler: str = "Euler a",
-    aspect_ratio_selector: str = "896 x 1152",
+    num_inference_steps: int = 30,
+    sampler: str = "DPM++ 2M SDE Karras",
+    aspect_ratio_selector: str = "1024 x 1024",
     use_upscaler: bool = False,
     upscaler_strength: float = 0.55,
     upscale_by: float = 1.5,