Every time a user submits a score, Socket.IO causes all the users get their leaderboard updated. This causes every single user connected through Socket.IO to read from the Dynamo DB database (every time the a user submits a score). As a result, my database gets several reads/sec.
This costs me ALOT!
How do I reduce read requests/sec to DynamoDB significantly, so I don't end up loosing a lot of money?