I'm trying to implement my own caching system. I have a situation where I need multiple copies of an image, scaled to a particular value.

Doing this is slow:

1
2
3
4
5

for i=1,10 do
    local image = display.newImageRect(imageName,width,height)
    image.y = (i-1)*(height+margin)
    group:insert(image)
end