I don't know much about how BTC or ETH works, but why all cryptocurrencies takes so long to confirm a transaction. I think even 30s is too long, why cant it be instant like PayPal?
not all cryptocurrencies takes too long to confirm a transaction, you can try with dgb and litecoin. it is less than 3 minutes i guess because i am trying to send m litecoin and dgb from one exchange into other, its directly in my wallet. maybe the network is heavy load or something happen but for bitcoin, we need to wait and its normal.