Texture quality problem

Unity Engine
1

Hello, why when I try to put any texture to my project it losing on its quaity. I am puting
two screenshots that you can compare:

Orginal: http://vgmaps.com/Atlas/NES/SuperMarioBros-World1-1.png

The same in Unity: ImageShack - Best place for all of your image hosting and image sharing needs

2

in texture import → choose texture type GUI or advanced and disable the compression as well as “nearest power of two”

3

Still the same. Could you put this texture into your project and check how it looks ?