As I type, my 98-second clip has taken 41 minutes to process 51%. An estimated 39:05 to go. I did use Color Director to tweak a few things but OMG, what's taking it sooooo long. My CPU is only running at approx 65-71%.
My system is Windows 8.1 / i7-4790K / new Asus GeForce GTX 950 / 16Gb RAM / new power supply with lots of headroom. (Nothing is overclocked.)
The original clip is an MP4 taken by my Phantom 2 Vision+ at 1920x1080, 30fps. I'm rendering it the same. I have just moved from Corel VideoStudio Pro X8. VSPx8 utilized 100% of the CPU. PD14 certainly has many more features that VSPx8 but man, PD is super slow. I wonder if my system is set up incorrectly?