I am having an issue with a gallery created from a collection. The collection is created when the app starts and then the gallery shows the items. The problems comes when you skroll down to see all the items and the gallery become blank and it takes a while to see all registers from the list, but if you go and check the collection all the information is already there. Does this have something to do with the way the data is stored in the collections? Some help would be reallly helpful in order to optimize the performance of the app.