Here is a tip to speed up scanning of barcodes on the register. Our scanners are very high quality, and they will actually look for the barcode much faster than you can.
So if you want to speed up, your scanning do not look for the barcode, just swipe it in a long arch. The barcode reader will find the barcode and scan it in less time than it would take you to examine your item, find the barcode and direct it to scan there.
Of course if it does not scan try flipping it and scan again. If that does not work, then sorry, you have to start looking.