Speed is too slow

When I read the paper, the speed is too slow to generate long videos. Are there any ways to make it faster?

One more question is that, where can I set my input & output video resolution? 

<img width="1036" height="341" alt="Image" src="https://github.com/user-attachments/assets/fb34b72c-2450-41b1-83b2-b00cef614b77" />