This is not a bug under our control. NVENC does not really support >70% very well. Ask NVIDIA
See also Export is Making Larger and Larger File Sizes [19.10.20 - Win 10]
This is not a bug under our control. NVENC does not really support >70% very well. Ask NVIDIA
See also Export is Making Larger and Larger File Sizes [19.10.20 - Win 10]