Displaying too many dimensions can degrade performance.

The main purpose of dimension values is to enable navigation through the records. Passing dimension values through the system consumes more resources than passing properties. Therefore, the default behavior of the MDEX Engine is to return dimension values on records only when a record query request has been made (not for navigation query requests).

As mentioned above, this behavior can be changed. However, the developer should exercise caution when passing dimension values through to the record list, because doing this with too many dimensions can degrade performance.