This lag is one of the most frustrating things of self checkouts. The manned checkouts don't have this. Its bleep, bleep, bleep, one item after the other. But t

This lag is one of the most frustrating things of self checkouts. The manned checkouts don't have this. Its bleep, bleep, bleep, one item after the other. But the self checkouts have that damn refractory period after a scan to recover itself and be ready for the next scan. It's also true of any of the other actions like for payments needing sometimes five button presses each with long pauses. Like just have 'Pay Cash', 'Pay Debit/Credit' as two separate buttons and if you hit 'Pay Debit/Credit', the card reader is ready to go. Oh, even worse is when they give voice instructions, but you can't proceed until its finished talking.