I lived in the US then moved to Ontario. I find that about 70% of card readers here have "NO TAP" taped across the top. Since the insert chip, enter code, wait, and approve process actually takes longer than the swipe-and-sign in the US, I've found the time spent, averaged over my actually purchases, to be about the same. It probably has more potential to improve in the future.
Back in Sweden, Chip-and-PIN was so efficient - you can insert your card, enter your pin, and get an authorization all meanwhile the cashier is ringing up your goods. Then when the total is done, you just hit "OK" on the final amount and in seconds you're done.
In pretty much every other country I've visited, you have to do the whole process serially after the total is done, which is quite slow.
