Premiere Pro CS6, Extremely Long Export Times - ProRes

All,
Trying to figureout what I'm doing wrong. My sequence is 1920x1080, 29.97 and ProRes 422. The entire thing has already been rendered. I've checked "Use Previews"
See below:
Any suggestions? It's a 5:30 sequence.
Thanks!

All video movies on Mac are Quicktime, even uncompressed, which can be achieved with Quicktime None or Animation 100%.  Both of those are 8-bit, though, which would defeat "Use Maximum Render Quality," if so desired.
IINM, image sequences may not require QT.  But, then you migh have issues if the next app in the transcode process don't accept image sequences.  And they're not available as a Preview File Format on Mac.
However, ProRes is a perfectly fine preview file format.  It's just that Pr doesn't always use the Previews on export, the way it should.
I usually master to ProRes, and when doing so, Pr usually will use the Previews, and they are fast.
In any event, I don't normally experience the overly long exports from Pr.  Looking back at the OP, a 2 hour export for a 5:30 sequence is outragous, and I believe is a sign of something else amiss, other than typical Pr behavior.

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