zaitaxiang2012

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WAN 2.1 I2V/T2V. I tested the rel L1 thresh values of 0.12, 0.25, and 0.3, but none of them could accelerate the process. However, setting FirstBlockCache to 0.1 can double the speed, but the quality drops significantly.

![Image](https://github.com/user-attachments/assets/a43d2429-addd-4651-9326-45460259d404) ![Image](https://github.com/user-attachments/assets/acd489c8-8ea7-4a43-a9bb-5feee4303497) ![Image](https://github.com/user-attachments/assets/ea8d09f1-a401-4b98-be78-eb1848df2c56) There are obvious quality issues with TeaCache, and FirstBlockCache didn't improve the speed.

WAN 2.1 I2V/T2V. I tested the rel L1 thresh values of 0.12, 0.25, and 0.3, but none of them could accelerate the process. However, setting FirstBlockCache to 0.1 can double the speed, but the quality drops significantly.

Thank you. I will provide the latest test results.

WAN 2.1 I2V/T2V. I tested the rel L1 thresh values of 0.12, 0.25, and 0.3, but none of them could accelerate the process. However, setting FirstBlockCache to 0.1 can double the speed, but the quality drops significantly.

First of all, thank you for your efforts. However, after testing, the video quality still cannot be satisfactory.