I'm new to image generation, i started with comfyui, and I'm using flux schnell model and sdxl.
I heard everywhere, including this subreddit that flux is supposed to be very fast but I've had a very different experience.

Flux Schnell is incredibly slow,
for example, I used a simple prompt
"portrait of a pretty blonde woman, a flower crown, earthy makeup, flowing maxi dress with colorful patterns and fringe, a sunset or nature scene, green and gold color scheme"
and I got the following results

https://preview.redd.it/rzky9t860ake1.png?width=403&format=png&auto=webp&s=67471f77fabf4600ecb2fc2161f25355c7793f5a

Am I doing something wrong? I'm using the default workflows given in comfyui.

EDIT:
A sensible solution:
Use q4 models available at
flux1-schnell-Q4_1.gguf · city96/FLUX.1-schnell-gguf at main
and follow (5) How to Use Flux GGUF Files in ComfyUI - YouTube
to setup