MiniMax H3 with LightX2V 4-Step LoRA cuts render time

A Reddit user tested the LightX2V 4-step LoRA with MiniMax H3 on an RTX 4090, cutting a 15-second, 1-megapixel clip from ~20 to ~11 minutes. However, using four steps for both video and audio was impractical: image could break down and audio remained under-denoised.