repeater slow

set <mx:Repeater recycleChildren="true"[color=darkred][/color] id="rp" dataProvider="{dp}">

From Adobe:

The recycleChildren property is a Boolean value that, when set to true, binds new data items into existing Repeater children, incrementally creates children if there are more data items, and destroys extra children that are no longer required.

The default value of the recycleChildren property is false to ensure that you do not leave stale state information in a repeated instance. For example, suppose you use a Repeater object to display photo images and each Image control has an associated NumericStepper control for how many prints you want to order. Some of the state information, such as the image, comes from the dataProvider property. Other state information, such as the print count, is set by user interaction. If you set the recycleChildren property to true and page through the photos by incrementing the Repeater object’s startingIndex value, the Image controls bind to the new images, but the NumericStepper control maintains the old information. Use recycleChildren=”false” only if it is too cumbersome to reset the state information manually, or if you are confident that modifying your dataProvider property should not trigger a recreation of the Repeater object’s children.

Keep in mind that the recycleChildren property has no effect on a Repeater object’s speed when the Repeater object loads the first time. The recycleChildren property improves performance only for subsequent changes to the Repeater control’s data provider. If you know that your Repeater object creates children only once, you do not have to use the recycleChildren property or worry about the stale state situation.