Render Setting Questions (very slow render - with solid computer parts)

[Tyler26588095qres]

Hey, so i've watched and done research on best render settings and from what ive found my settings should be doing a good job as they were recommended. My CPU is a Ryzen 7 5700x 8c16t 4.6mhz and a RTX 3070. So one thing i have noticed is my cpu usage is only like 20-30% sitting at 60-70degrees TDIE, my theory is i havnt managed to utilize my CPU to its fullest. Also i have CUDA on as ive researched it should be quicker, but my GPU usage stays at like 3-7% so im not sure if its even using CUDA either. Any help is apreciated, my settings are in the screenshot below as long as the video is 1080p 60fps 4mins long. Thanks

[Tyler26588095qres · Accepted solution]

Well if any1 has the same type of problem this might've been a fluke but : i cleared my disk cache and my render speed sped up a ton