I don't think that there are too many settings on the stock launcher, but you can install a replacement like Nova Launcher or Action Launcher that has an option not to scroll wallpaper.
Download quickpic app. You can set a pic as wallpaper and it will let you choose the portrait mode (doesn't move) or wide mode which moves.
Its a simple fix that doesn't require any launchers. The quickpic app is actually a good and simple app to use as a photo gallery, Ive used it the last few years.
Btw, i cant stand a moving background!!
Sent with my white Note5 with nonremovable back and no SDcard!