I suppose that I've never been bothered by Premiere Pro's export times because I come from the world of visual effects and compositing, in which many renders take much, much longer.
I tend to add batches of items to Adobe Media Encoder and then go on about other work or leave the exporting and encoding process to take place over a break or overnight.
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Todd Kopriva, Adobe Systems Incorporated
Technical Support for professional video software
After Effects Help & Support
Premiere Pro Help & Support
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