Even stores with faster connections like grocery stores in bigger cities it is "wait a few seconds" (less than ten, they have it down to 3-5 seconds at this point) and then collect the receipt after it slowly prints out.

Whereas in Australia, it is just "tap and go." Starbucks works similarly with their QR code buying (but the money is onloaded to a digital gift card; but then I never use it anymore since mobile ordering is so damned convenient).