There are so many variables to video rendering (export).
Are all of your files in MP4 formats?
What are your computer specifications?
I know time is critical when trying to get something done, but with video rendering it’s not an exact science. If you’re using your computer while it’s rendering it will really slow down the process. Video rendering is very CPU and Memory intensive.
I’ve seen know a few people talk about using HandBrake for converting video. If your files are not in MP4 format, or something similar it should help out with rendering time. I have never used HandBrake as I never had the need to use it. @Steve_Ledger, what is the program you’re recommending for transcoding? (Trying to find the name of it in the forum, but can’t find it.)
Edit: Finally found it… “Avidemux”
Then once you have all of the files in MP4, then you can add titles, transitions, etc…