Thanks for your response.  My question dealt with the performance issue specifically because usability has not been an issue.  We have a small group of "super users" who we trained on the underlying data model, pluse we put a lot of effort into structuring the info map with folders, meaningful field names, predefined filters, etc.  Our users also received training on using the info maps to develop their own reports with Web Report studio.  The users do this all the time with great success. However, our users sometimes find that the web reports come up too slowly.  So we want to understand the potential for performance improvements if  we break up our "super" info map into several smaller more focused info maps.  Do you have any performance metrics you can share with me? FYI the info map structure, here is a screen shot which shows the highest level folders which makes it easy for our users to navigate to find the table they need and then the specific data items... ... View more