Proper settings for Cshade motion blur

Hey correct me if im wrong but the default settings are actually bad, Tried it with Spiderman Web of Shadow 
So i actually create my own setting even tho i dont understand a bit but it looks better tho,
And the only concern only have is am i using Cshade motion blur right?
What i need is what settings are the best in Cshade motion blur, tips or whatever that help improve quality of it

DEFAULT SETTINGS:
imgur.com/ftcnYwc
imgur.com/gWUId3K

MY SETTINGS:
imgur.com/9VWvqHP
imgur.com/U5WJEVJ


Sorry for bad English, English is my third language  .