This document provides a summary of Elaine van Bergen's presentation at the New Zealand SharePoint Conference on March 16-17 2011. The presentation covered performance considerations for design and development in SharePoint, including enabling the developer dashboard, configuring caching, logging with the SPMonitoredScope, proper object disposal, querying methods, and throttling. Elaine discussed the different types of caches in SharePoint and how to configure them, and provided examples of how to cache objects and queries in code. She also explained how to monitor for disposal and caching issues.