Your transaction has a fee of about 14 satoshi/byte.  Check this page to see how long it's expected to take for your transaction to confirm.

Note that it's possible the transaction could more or less time than that to confirm if the mempool gets more or less clogged or another factor like people sending more or less SegWit transactions affects it.  This is something that Electrum's dynamic fee system can't predict since it relies on humans' future activity.
It's fine.  You can accelerate the transaction with ViaBTC when they have space.  Antpool also has a transaction accelerator.

There's nothing wrong with your transaction, it's just that the fee is moderately low so it might take a bit longer.