Allow me to clarify that dbutils.fs serves as an interface to submit commands to your cloud provider storage. As such, the speed of copy operations is determined by the cloud provider and is beyond Databricks' control.

 

That being said, you may find that using dbutils.fs.mv results in a faster process, as it is a move operation rather than a copy operation. However, please note that this is not a Databricks-specific issue, but rather a characteristic of the filesystem.