The reason the 300 dpi settings you've described will take a shorter render time is because your planned rendering is only about half the size of the other. 2000 X 1125 instead of 4200 X 2363. That's what makes the difference in render time. "DPI" (dots per inch) is virtually meaningless on your screen in any computer program because it is a printing term, requiring paper, dots and inches. Your monitor screen measures only in pixels. You want your printout to look good, so 300 dpi for the print is a good place to start. Your render can be done with a setting of 72 or 300 or anything else, and it's really irrelevant what setting chosen for that; what matters are the pixel dimensions. To select the dimensions, you first need to know how large you plan to print it, in inches (or centimeters). Multiply those inches by the planned 300 dpi print resolution, and that will give the dimensions in pixels that you want to aim for in the render. In other words... 10 inches x 300 dpi = 3000 pixels 8 inches x 300 dpi = 2400 pixels If you wanted to make a 10x8" printout at 300 dpi, your image file should be 3000 x 2400 pixels. This applies whether using Vue, Poser, Photoshop or any computer program. Hope this all makes sense okay. :)