Captivate way better for screen, simulations etc?

I am checking out the program and am running into what I think are big issues. Here's a snap shot - hoping there's an easy solution because I am liking storyline.

I am creating a try it on a slow internal web app - so there are long delays between clicks, actions etc. How do I edit out the unwanted stuff? in captivate it's so easy - since it just captures the new screen rather then a full motion recording. I've seen the Action Fine Tuning - if that's what I need it does not seem very robust but again maybe, hopefully I am missing something? So in summary, my try it's are not adequate because when clicking a tab for example, there are long delays because storyline captured as it worked not just a snap shot of the new screen.