Moving assets for a title game with AS3

Dear all,

This is simple question for you. I have a group of images in my library which I want to load on the stage and move them using the keyboard. After playing with AS3 I already achieved that. However, when I move all the images at the same time, it looks too slow and not synchronized. Now each image is a singe element on the stage.

My questions is, if I put all of them in a container and move the whole container instead of each image, this will improve the speed and make the movement more natural?

I am asking this because to put them in a container will make to study more AS3 and deal with new things and before to proceed I want to have a least a clue it will better approach to solve my problem.

All my questions are because I want to design a title game using AS3.

Thanks in advance.