Does blockchain.info allow you to increase the fee?
If not then you can try import your BTC address private key from Blockchain.info to Electrum ( https://electrum.org/#home )and see if Electrum allows you to increase the fee?
You will need extra BTC in your account / BTC address for the above.
Alternatively you can abandon the transaction in Bitcoin Core wallet but unfortunately you will need to download the Bitcoin blockchain for Core wallet to work and the blockchain is approx 160 GB and increasing.
You could also try asking someone to accelerate your transaction or try yourself as per links in my above post.
You can also find more info here about stuck transaction https://bitcointalk.org/index.php?topic=1914800.0