2024 VDB huge time render difference. Why?

[FrankLIU]

yes. in 2024, 100% means using 1 as the step length, because if you scene was stored in 2023 format, octane will run in 2023 compatible mode.
in this mode, 100% means 1(the absolute step length).

[lastdrog]

Ok, thank you for all of your answers. I think Voxel size was taken from Embergen, and it represents 100%, that's why it was the time difference. I will test it on other projects then.