[curt.clifton]

The delay seems to be proportional to the number of items displayed, not the number of items in the database. Switching from Context to Planning mode takes about a second for me if I have my 16 or so screen pages of remaining actions showing in Planning mode. If I use the Show All Items perspective, then the switch takes 4 or 5 seconds, because showing the completed items increases my list to nearly 100 screen pages of actions. (Wow, I've gotten a lot done since May!)

I seldom look at my completed items. My list of active items stays at a fairly constant size, since I faithfully put projects on-hold if I'm not really going to work on them. So if the delay is really proportional to the number of items displayed, I don't anticipate having any problems.