Replaced Transactions
If the status is pending you can replace a transaction with increased gas limit to have it mined quicker. To do it just send another transaction with the same nonce as the previous one. The new transaction replaces the previous one. After replacing a transaction on a wallet, Usedapp will detect this and track the new, replaced transaction.
UseDapp behaviour
UseDapp supports replaced transactions. It detects replacement and shows Success
when new transaction will be mined.