Wrong bitrate

I am trying to download a video or videos which have the usual quality bitrates, 360, 480, 720 etc.
But 4k is telling me it can only get low grade options like 360k but then it says the original it lower.
Here are some links:
By the way you have a great program, better than free youtubedownloader which I used to use.
https://www.youtube.com/watch?v=zlbCakDfXfE

https://www.youtube.com/watch?v=JAjN9WkTwA8

https://www.youtube.com/watch?v=5r3PvXquZKo

Thanks