Why my Roguelike 2D graphics are naughty in devices?

Hello, I been worked on a 2D Roguelike game for mobile devices (Just Android & iOS) and when I build and run on an Android phone the graphics sucks! They’re too much pixeled and are naughty.
And the camera view doesn’t are like I’ve configured, it seems like everything are in desorder, but in the editor looks totally normal, even changing the aspect in the Game view to adapt the screen for many resolutions.
May I’ve forgot to set up something in the Player Settings or something?

Please help!

hope you have changed the texture of the images used to Editor GUI or sprite2d from import setting and also untick the generate mini map and changed the format to trueColour