# MongoDB Performance is Disk-graceful > These are all my views, not the views of my employer. A less inflammatory thesis might be "MongoDB requires different schema patterns & understanding of its storage engine to optimize performance"... but that's less fun MongoDB does not scale well. Yes, you can easily shard a database. Yes, average write speed can be fast. Yes, there are schema patterns you can use to get impressive read performance. But, fundamentally, I've found that MongoDB is much ...
