I was never impressed with the speed at which VP rendered. I was using win7 for many years and whenever I did a 'render-as' I would know to left it to do its stuff for a few hours, or overnight. I have an i7-2600@3.4Ghz HP workstation with Nvidia Quadro K600 video card. Nothing "mind blowing" by today's standard, but enough for the job. I expected VP15 with the GPU access to help rendering would by worth the extra $$. Disappointing, cos it actually slows down the rendering process.
So, recently I updated from Win7 to Win10 and after finishing my first project on Win10, VP15 would not render AT ALL, I mean at all. The counter would go on counting up and the progress bar never moved, even after 6 hours. I tried different output templates, DVD, AVI uncompressed, m2v.. no change, even after 16hrs of waiting.
But after a lot of 'googlin' and making settings changes mentioned by many youtuber's and posts, I can finally say that I am more than impressed with the speed at which VP15 will render, I no longer have the worry about not making a deadline. Previously it would take upto 4 hours for a 1hr 20mins into DVD. Now less than 45mins..
If you are interested enough I can upload a screenshot of all the VP15 settings pages and the project settings and media settings... but the main change was to disable the Nvidia card in the "GPU acceleration of video processing" in the preferences, "untick" a few items in the preview device tab of preferences, keep Smart Adaptive (GPU only) deinterlace method.. (yep I am in PAL country)
Thanks for reading and I hope this will inspire you to not give up on your expectation of fast rendering, and be aware that despite marketing b-s an old(er) version can still impress. cheers CD