how to remove blurriness of home screen picture

[Divij Chandwani]

I have set the home screen picture and no other thing to be displayed on the lock screen ...
However, I notice that when the screen is locked, the wallpaper shows a little blurred while when i unlock the home screen, i can see the perfect clarity of the wallpaper without any issues .... How do i show the wallpaper in its actual clarity (no blurred image) on the lock screen?

 

[Nightscape]

Disabling the ripple effect makes it clearer but you can still tell a little bit of difference.