Minimax H3 video editing on RTX 3060: RAM bottleneck

User reports 100s/iteration with 4 steps using lightx2v turbo lora v0.1 on RTX 3060 12GB VRAM and 64GB RAM. Generation at 0.35MP, 5s, with near 100% RAM usage, suggesting RAM is a bigger bottleneck than VRAM.
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