It ended up speeding up to normal speed after maybe 10 minutes (still took almost 2 times longer than version 8 would have taken).
I'm now ripping another DVD and it's 0.66 MB/s with 2 hours 23 minutes left while copying VTS_01_1.VOB.
Now, about 8 minutes into the DVD rip, the speed started increasing so that it's now 1.87 MB/s for time elapsed = 10 minutes - and the rip speed is steadily increasing. Now at 15 minutes it's 3 MB/s.
I'm on a very old XP box, but ... version 8 didn't have this issue.
BTW - in Customize mode, is there a way to order the titles created on the ISO? Especially for TV shows, this is essential.