powerpoint experts

I am trying to animate a series of text objects in ppt. The file runs fine in office 2003 (as a ppt) but when I change computers and run it as a ppx it runs slow (very very slow)

So two questions

  1. what is the max number of animations I can have per slide to keep it fast
  2. why is it running so slow in the first place - the “slow” computer has way higher specs than the “fast” one…

Please …anyione?