When working with Sony Vegas Pro 12, I render just audio parts of a video so I can then use compression/amplification tools etc in audacity. This has worked fine, taking as little as 2-3 seconds to render the audio file until recently I had to do a clean install of my computer. After reinstalling Vegas Pro and rendering audio files again it takes up to 2 minutes.
I saved all of my projects and render settings, so there is definitely no difference in there. So I can only assume there is some option/setting or something that I had before but is no longer enabled(or disabled) now, but for the life of me I cannot find this anywhere.