https://docs.vrchat.com/v2018.2.3/docs/creating-your-first-world describes "Update Time in MS" as

> The default 10ms should be good in most cases

On the other hand https://docs.vrchat.com/v2018.2.3/docs/vrc_scenedescriptor says

> The default 33ms should be good in most cases

With current SDK, its actual minimum value is 33.