Spectrum caching ComfyUI node gives ~2x speedup with no visible quality loss
Aero_X_ · reddit · 2026-09-21
A Reddit user tested the community-made Spectrum node for ComfyUI (Qwen image generation) and reports a 1.8-2x speedup with no visible quality degradation, backed by side-by-side comparison images. The node is open source at github.com/awdqwdasdg/Comfyui-Spectrum-Qwen2.1.
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