Develop > Presentation layer > WebSphere Commerce integration with WebSphere Portal > Customize WebSphere Commerce Portal integration > Use the provided WebSphere Commerce MVCPortlet class (MVC style)
Optimize the MVCPortlet application
The typical rendering configuration of WebSphere Portal server is to render portlets on a page sequentially. That is, some portlets can delay output from other portlets to the client browser. Depending on the business needs of the portal site, it might be better to enable the portal server to allow parallel rendering, where portlets capable of performing parallel rendering can take advantage of this feature.
It is possible to configure the WebSphere Portal server to render the WebSphere Commerce portlets in a parallel fashion in order to optimize the response time of the portal site.
See Parallel portlet rendering in the WebSphere Portal Information Center for more information.