If you watch from Future world you have a quicker exit only it is harder to get seats there. The only other option I know of is to watch from near the international gateway. After the show either take you time leaving and get out later at the main gate or leave throught the international gateway and head to one of the epcot resorts right there, hop a bus to where ever you wanted to go. In years past I have watched from the WS and just slowly wandered back to the main gate. by that time the busses and monorail has taken a large majority of guests and I have never had to wait that long to get back to my resort.
Minnesota