Performance Issue When Using Repeater

[alizadeh91]

hi
I'm creating some items in qml by repeater which are approximately 100 items. when i have for example 10 of these big items(totally 1000 items) in qml, my cpu usage goes about 20percent.
The interesting things is that the cpu usage goes back to zero when i stop animating parts of items. So the repeater occupies cpu usage when there is something that force it to repaint.

How can i improve performance??