Thank you all for your kind words. @After24
I can see some issues too on Android (I tested on op3 and Galaxy S9). As this is a v1, I wrote the item renderers really quick using MXML ( I know, I know..) as we were working with a deadline. Next version will come with several improvements so I will be implementing all renderers in ActionScript. This is also the first time I used a list with 2 columns, which could also have performance issues. I used to write these UIs as a Tilegroup with scroll and Skinnable cointainers or Item Renderers. On iOS I didn't notice any issues. -- Sent from: http://apache-flex-users.2333346.n4.nabble.com/