Best way to maximize datastore efficiency

( I’m new here. If I posted in the wrong topic, please let me know, thanks!)

I was wondering if using two datastores would affect the server performance-wise and if it was a good idea to use this method in case the primary datastore fails.

The two would be used for:

  • One for previous purchases. (MarketplaceService)
game:GetService("DataStoreService"):GetDataStore("PreviousPurchases")
  • Another for everything else.
game:GetService("DataStoreService"):GetDataStore("PrimaryDataStoreV_1")

Would it be more efficient to put them in the same DataStore and separate them by a key, or does it matter?

Using 2 datastores wont effect server performance