Optimised LTX 2.3 for my RTX 3070 8GB - 900x1600 20 sec Video in 21 min (T2V)

After four days of intensive optimization, I finally got LTX 2.3 running efficiently on my RTX 3070 8GB - 32G laptop ). I’m now able to generate a 20-second video at 900×1600 in just 21 minutes, which is a huge breakthrough considering the limitations. What’s even impressive is that the video and audio quality remain exceptionally high, despite using the distilled version of LTX 2.3 (Q4_K_M GGUF) from Unsloth. The WF is built around Gemma 12B (IT FB4 mix) for text, paired with the de versions video and audio VAEs.