Sorry for this new lame question.

Let's say I gained 1 gazillion life earlier in the game and that I intend to play Lim-Dûl's Vault. I should be able to order my whole library if my library has a number of cards that is not a multiple of 5. However, as we are supposed to keep tracking my exact life, we cannot use such shortcuts as allow me to order my library as I want. Thus, I would have to repeat the manipulation of my library quite a long time to obtain what I want, which can be a problem in a tournament and could be considered as a way to stall the game. How can it be ruled out for the best of all?