Wow. That kind of dampens my enthusiasm for an old Tiger. I think 30 minutes is too long and I'm shooting for 10 (with my 16). Would love to have a faster boat for inland sailing but a 90 minute setup is a show-stopper when you have to drive two hours each way for a day sail.
Setup time is largely dependent on how familiar you are with the boat, how focused you are on getting it set up, and how many gizmos, etc, you have on the boat. If you have a Hobie 16 that you keep the rudders attached all the time, keep the blocks and boom connected to the main, keep the battens tight, have a basic jib halyard and downhaul, I think ten minutes might be a little bit of a challenge, but 15 probably isn't out of the question.
For Tiger, there's no way around the added set up time. It's simply a more complex boat with more parts to assemble. That being said, I'd be willing to bet that for casual sailing, there's probably a lot that could be done to simplify and speed up the setup process without having a major impact on performance.
I would guess that there are a large percentage of Hobie sailors (especially racers) that enjoy setting up and tinker with their boats as much as sailing them.