a 12900k running at 2.72ghz? win 10 ? assuming it's not running at 105degrees ... is the encoder running on the efficiency cores? (they'll be the last 4/8/whatever listed in the CPU graph) - those are incredibly slow and deeply unsuited to tasks like video encoding afaik win10 still doesn't have proper scheduling for…
tbh: "is the encoder running on the efficiency cores? " - answer: i wouldn't know how to assign cores to tasks. I will edit this post when i can get to adding the img with the info if i can figure out how to do those things, but yes i leave things on standard as i feel any changes to those settings just make things…