That's really good news. Perhaps the results would surprise you. I run some tests myself (not on a 13900K, on my 12400):
VMAF File
70.303203 BL3-Seq1-1080p-CPU265-13900K-Medium-3M.mp4
75.315422 BL3-Seq1-1080p-CPUAV1-13900K-Medium-3M.mp4
I run some tests on quality presets that...