Where do you seem to be losing most of your time? Stepping the mast? Hoisting the sails and setting the main halyard?
My process for tearing down the boat:
1) Lock the rudders up with a 2 ball bungees around the tiller crossbar and the rear beam.
-I keep the ball bungees on the boat all the time. When sailing I just run the bungees through the rear tramp grommets. That way they are always there when you need them.
2) Detach the tiller extension
-this step is much faster if you put a quick pin in like this:
3) Bring down the jib
-I have a quick pin at the tack of the sail to make it quick to detach from the chain plate
4) Bring down the main
-main blocks attach to the traveler with a quick pin as well
5) Fold both sails and put in sail box
-I keep the main blocks attached to the boom and the boom attached to the mainsail
6) Push boat up onto trailer and secure
-Search on the forum for ways to secure your boat easily and securely
7) Unclip trapeze wire bungees
8 ) Bungee the trapeze wires with ball bungee to the base of the mast so that they are flush against the length of the mast
9) Pin mast
10) Drop the mast
-While pushing foreward on the mast, have an assistant unclip/unpin the front forestay from the chainplate. I have a clip on the end of mine which makes it easy to attach/detach.
-Bring it down slowly and don't let anyone stand directly under it until you have it under control.
11) Push the mast forward on the trailer and bungee it to the trailer mast crutch and the rear crossbeam
12) Your shrouds should still be attached and laying over the boat. Now, pull the shrouds forward and bungee the slack out of the shrouds to the mast crutch.
13) Drive away
To set up the boat, just do the opposite. I can tear down the boat in probably 15 minutes and set up the boat in 20 with someone else that knows what they are doing. There are probably other shortcuts but these are the things that I do.