It'll show "Unconfirmed" if it's unconfirmed, "Local" means that it's only saved in your wallet, your selected server doesn't have it.
Even if it's "local", Electrum will allow you to perform RBF if you've set that transaction as replaceable.

So, you have two choices:

• 1. You can Right-click on it and check if there's an "Increase fee" option.
  If there is, use that to set a higher fee rate.
• 2. There's another option for local transaction which is "Remove",
  that will enable you delete that local transaction from your history to spend its input(s) to another transaction.
  Use this if you want to change the recipient's address.