MiniMax H3:T2V Optimization Test: LoRA+SLA Speeds Up Video Generation 4x
ZerOne82 · reddit · 2026-08-22
Conducted a performance and quality comparison test on the MiniMax H3:T2V video generation model, evaluating the impact of LoRA, Comfy/Sage attention mechanisms, Sparse Attention (SLA), and Sampling Shift.
Key Findings:
- Speed: Combining 4-step LoRA with SLA1 can boost generation speed by over 4x (dropping from 6 mins to 1.5 mins on RTX 3060).
- Quality: LoRA positively affects composition beyond speed; ComfyUI's native attention is stable; SLA1 is significantly faster than SLA2.
- Best Config: Model -> LoRA -> Comfy -> SLA -> Shift -> KSampler.
The post includes detailed timing data for 24 configurations and the full prompt used.
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