
Kevin-Monahan could you ask the engineers to add an "advanced" tab with those tunables, and perhaps read the next paragraph to them too? If it's related to some sort of internal quality knobs in Premiere being turned up to 11, I want Adobe to provide access to those knobs in export. If Premiere can render a two-hour video in real time and not even break a sweat, why is an export taking WAAAAAAAY more time than that? This makes no sense to me and as a programmer I find it rather inexcusable. What really drives me nuts is that this video renders in real-time during timeline playback excluding the short intro/outro sections that use some software-only (red status) effects.

I have even rendered previews for most of the timeline and have "Use previews" checked.
PRO VIDEO FORMATS 2.0.4 FOR AFTER EFFECTS 1080P
Clips have Lumetri Color with only basic corrections in most cases (color, contrast, saturation, highlight/shadow adjustments) with only one clip shown at any given time 4K 29.97 50Mbps or 100Mbps source footage downscaling to 1080p 29.97. Premiere uses 100 Mbps of the 1000Mbps bandwidth during rendering and maxes out at 17% CPU usage. I set render mode to Performance and gave Premiere 9-10GB of RAM in the memory settings to work with. Six hours later it says it'll take another 3.5 hours! I don't have max depth or MRQ checked, I'm pulling all footage from AND exporting to a RAID array that can easily saturate the gigabit link. I have a video with a total length of 1:48:55 that I left rendering on the i7-6700HQ with CUDA enabled for the project.

I have the most powerful computers I've ever had in my life right now including an AMD FX-9590 with a Radeon RX 470, an Intel Core i7-6700HQ with a GeForce GTX 970M, and an emergency standby spare laptop with an Intel Core i5-4300M and Intel graphics.

I want to chime in that I am also seeing absurd render times.
