ComfyUI is the best environment for fine-tuning SSD v2 because you can re-route the model pipe.

While base models like SDXL or SD 1.5 offer high fidelity at a snail's pace, and Turbo/LCM models give instant results with potential quality loss, SSD v2 promises a "best of both worlds." But the default settings rarely unlock its true potential. To achieve that sweet spot where images render in a blink without looking like melted plastic, you need to properly.

Even after you tweak SSD v2, things go wrong. Here is the diagnostic checklist.