For now, the high gas price is 55 Gwei and it is confirmed for about 30 seconds, for the gas price it is at 39 Gwei and it is confirmed for 1 minute. And for the low gas price is 19 Gwei and it is confirmed for 15 minutes. For your delivery gas which is only 4 gwei ,, Maybe it will not be delivered in the near future .. Or even your token will not arrive, because the price of Gas is always increasing!