Nah, if you use transaction accelerator you can use the minimum or lower priorities. Recently, I checked the mempool and fee is like $14.49 so it is reasonable to use Viabtc's accelerator on this situation where fees are quiet high. If you are lucky to have successful submission then no need to wait for another hour to avail it's service.
You need to spend more than 0.0001 BTC for the fees, currently it's $4.79, It definitely cheaper than paying $14, but it's still high. The transactions size must be lower than 500 bytes, so if you have many inputs, you can't since the size would be higher than 500 bytes.
Also remember, there's no guarantee your transaction would be speed up.
Paste or enter the TXID you want to accelerate. The volume of a single transaction must be ≤0.5 KB, and the transaction fee rate should be ≥ 0.0001 BTC/KB.