Why are textures from Substance Painter pixelated?

Question

Unity

Good day. Such a problem: I make textures in substance painter in 4k, when I export and throw it into unity, then in the distance the texture looks like norms, but if you come closer, then it is pixelated, then like a texture on a torch in your hands, although not 4k but smooth and clear, not pixelated. PS torch from asset store.