You want the same text across the whole video?
When I put a “property of” title on my cuts I just cut it across over and over until it’s on the whole edit, which if it’s a the whole film is 95 minutes long. Not sure if that’s what you are trying to accomplish though.
As to the rendering, I can’t really speak to that other than to say that for me to export the 95 minute cut without making it self-contained it takes about an hour, I don’t render the titles beforehand. The other night when I came back to check on an export it had jumped to 4 hours remaining. I canceled it, rebooted the whole computer, tried again and it was back to normal. For some reason it had gotten stuck and the reboot fixed it.