If you just want the answer to this one, queue the encode and use Adobe Media Encoder instead.
That’s it really. Should I stop here? Well, maybe but this wouldn’t be much of a post without at least some background to the reason I am writing it.
Encoding a timeline from Premiere takes a long time. I think most people accept that now. Even with a powerful PC, it’s not going to be quick. A 10 minute 1080 25p clip took me about an hour yesterday. That did include some noise reduction and Speedgrade colour correction but it’s still a long time, particularly if your initial export is a test.
That’s why I find it annoying that Premiere Pro sometimes sits there encoding at a leisurely 45% CPU (varies a little across the cores). It doesn’t always do this. It may depend on the format of the source clips but I’m not certain on that. A simple solution, as mentioned above, that always seems to avoid this and pushes the encode to hammer the CPU permanently is to hit the ‘Queue’ button in the initial export window and encode it from Adobe Media Encoder instead. It’s actually a nicer interface to work with as you can naturally perform batch exports that way, you can go back to look at exports done previously and it provides visual feedback on the progress of the encode.
Anyway, I hope this is useful for someone. It has never failed to work for me so far but it’s true that all computers are different. For the record, I am using Premiere Pro CC 2014 on a Windows based desktop computer.
If you don’t own Adobe Media Encoder then this post is not going to help you. Perhaps I should have opened with that.