When syncing takes too long or does not complete, try the following steps to correct the issue:

• Force close the app and try again;
• If you are using mobile data, switch to wifi and vice versa;
• Move to a different location in your house or office to get a better signal;
• Try again using a different internet connection in a different location

FastSync is enabled on the Bitcoin Cash wallet by default.

Visit this page if you need instructions on how to sync your Bitcoin Cash wallet to the blockchain.