The performance depends on whether the client directly queries the database or if Bubble’s backend handles the database communication (for external databases). Generally, retrieving data from Bubble’s native database is faster, as it’s likely hosted in the same AWS infrastructure or in close proximity to where the data is stored and accessed. However, if you’re dealing with large data volumes or applying complex backend functions to the response, you’ll find that Bubble’s built-in database underperforms compared to the other mentioned databases.