How to use Amplify Datastore to sync with data from DynamoDB and seed DynamoDB from a Lamba

Hi, I would like to do the following in the context of Amplify with a React Native app.

1. push data from Airtable to DynamoDB via a Lambda - I can do this
2. sync this data from DynamoDB into Amplify DataStore - How to do this?

So that I can query datastore to show some filtered views of this data. I don't intend to update the data from the device, it's read-only but when I update or push new objects from Airtable, Id want them to appear on the app.

Also, as I want to filter, Im looking to do a bunch of AND's as a compound query in Datastore, is this possible please?

PS I have about 5000 objects with about 10 attributes each, is this an issue in terms of scale or performance?

Thanks for viewing my question :)