> the hard-coded delay between consecutive scans is small enough that you don't swipe too quickly. The Kroger where I shop currently has self-checkout systems

> the hard-coded delay between consecutive scans is small enough that you don't swipe too quickly. The Kroger where I shop currently has self-checkout systems where they only let you scan the next item after the previous one has been placed in the "bagging area". That addresses the scan more than intended issue you mention, but it makes scanning individual items of the same type even slower.