I've created a seamless background pattern in Photoshop. When I apply the background to a canvas and downscale it or zoom it down, I lose resolution of the images in the pattern. I've tried converting it to a smart object - still the same, I've tried the edit image and bicubic shapener (reduction) option - still the same. I'm tearing my hair out. I can't work out how to reduce the size without losing resolution.