If at terminal 2, then the internet in the lounge is horrible. Think 1983 300 baud dialup. The new Terminal 3, looked quite new and shiny when we used it a couple of weeks ago. Hoping for better stuff there.

You could probably buy a sim card with acceptable data transfer speeds.

Are you picking up luggage? Rechecking? If so, then doing all this, plus going to a hotel might be overly optimistic.