14B7 - Lag Moving Huge Amounts of clips

When working on a long timeline ( 1 hour), and you want to ripple delete the first clip, you will have a delay until the action is performed for all the clips. In previous betas, this was not a problem, but is very explicit in this one. Appear as something silly, but this can be a pain when working with huge amount of raw footage and having to edit it fast.