OS: Poor quality when printing price tags/labels

Please help me to solve the problem with printing labels. We often use small format price tags (20x30 mm; 30x50 mm, etc.), and display a barcode on them. If you create such a template in Box, the print quality is very poor. Also, now you can set up a template in the price tag template only if there is 1 check per 1 page, but you need to print in bulk, in three columns. Because of this, the scale goes astray and all images do not fall directly into the center of each sticker. Perhaps this can be solved if you generate a mass output of the barcode for printing. Plus, it should all be a 3-column grid like in the video https://www.youtube.com/watch?v=ulgxxiUyK7M