React Native + AWS AppSync - maximum data storage

Question

I’m building an offline application which needs to store around 30,000 records.

Will AWS AppSync have any performance issues with a data set of this size?

I’ve used redux w/ redux-persist in the past, which saves the store offline, then refetchs and places in memory when the app launches. This causes fairly huge memory issues, especially when querying the data.

I’m wondering if AppSync has the ability to use Realm or SQLite for offline storage and querying.

Thanks.