Sony Vegas Pro 13 has a stable high framerate when rendering or previewing a normal video, but when adding a layer of text or effect, the framerate drops magnificently.
I can't find a solution to this problem, and it's now costing me hours to get the text/effects right, because even pre-rendering a small part of such video seems to take a lot of time.
My system shouldn't have a problem with this (AMD Ryzen 7 1700 (eight-core!), NVidia GTX 1060, and a total of 16GB RAM), so I suppose there must be an important setting I've missed.
Help is appreciated.