The transaction has a fairly low fee. It won't confirm for a while.
Do you suggest rising the fee a little to speed things up in the future? By how much % would you recommend if I may ask?
It isn't a percentage.
A transaction is typically in terms of satoshis per byte. Your transaction is 19.19 Satoshis / byte. According to
http://bitcoinfees.21.co/, a high enough fee to get a very fast confirmation is 60-70 Satoshis / byte. However this does change depending on the state of the network. It may be different when you send another transaction.
Additionally, if you send a large transaction (lots of inputs or lots of outputs or both), then you will have to pay an even higher fee as that takes up more bytes.
