Question regarding Silt.NET.Windowing multi-threaded behavior?

[XiaochaoYan]

 /// <summary>
    /// Calls the Render event. On a multi-threaded window, this will run on an internally managed thread.
    /// </summary>
    void DoRender();

    /// <summary>
    /// Calls the Update event. On a multi-threaded window, this can run on any thread.
    /// </summary>
    void DoUpdate();

This is what I found in src/Windowing/Silk.NET.Windowing.Common/Interfaces/IView.cs . Does this mean we can assume Silk.NET itself will create thread to boost performance when it is possbile or do we need to manually start a seperate render thread for Silk.NET?

I am also curious about the default refresh rate and v-sync related behavior.