[Nat Kramer]

Hi Francis,

This really does sound to me like an OS issue, or the interplay of the Premiere version you’re running and the new windows 10 OS. Seems like you’ve crossed off the other variables pretty well and in my experience the added audio files wouldn’t do much to slow you down.

Maybe one thing to look at is antivirus or other background processes running with the new OS install.

That being said I’m not an expert (particularly with Win 10), so both you and I should probably keep our eye out for more sage advice.
-Nat

http://www.natkramermedia.com

Custom Build PC
Windows 7 64
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