Unfortunately we can't accelerate withdrawals to external wallets as it depends on the external service you are using. If there is a delay with your withdrawal, it is likely because gas fees are high and the Ethereum network is busy.
What are Gas fees?
Gas fees are payments made by users to cover the cost of the computing energy required to process and complete transactions on the Ethereum blockchain.
Gas fees can vary depending on the traffic on the Ethereum network. The busier the network, the higher the gas fees will be to process any transaction. This can also result in delays with transactions. You can track how busy the network is here.
Best of luck!