Cascaded prompts open very slowly

[cogb]

Hello:

In my prompt page I have a parent drop down list that cascades to 4 other drop down lists.  They all have static choices.  Once the user selects prompt #1, boolean variables are set that determine which of the 4 child drop downs should be displayed, while the others have their Box Type set to None.  The parent drop down is set to Auto-Submit.  What's strange is that once prompt #1 is selected, it usually takes several seconds for the child prompt to be made active.  Should it take this long?  Is there anything I can do to speed this up, especially since all of the choices on the prompts are static?

Thanks,
cogb