You have to create your own. Most of the time I create new objects where the KPI are stored and refresh them when somebody wants the dashboard. If this takes to many resources, update the KPI's in a scheduled event during the evening. Then the user always sees the status of yesterday. You can use something like the fusionchart app to create nice graphics of the KPI's.
Thank you Ronald but i also got another way to easily implement kpi dashboards by downloading fusion charts from the mendix app store