Tech - youtube video quality

Thanks @haneul

I'm on a low end computer and without even checking the frame rate while gaming, I know it's not tip top.

My main issue is that when I edited and extractd a video it looks great technically. After uploading it, it performs not so great on Youtube. So, my problem is not low fps in-game, but probably the tech settings while uploading to YT. I did not notice this until the recent videos, so maybe there were changes done at YT? Because I never adjusted settings of my editing software, even with only 25 fps I was happy with the quality of rather long videos on YT.

As I can't find anything "p" in the extract settings, what does "p" stand for? Assuming it's not "pixels" as in monitor resolution, because that is named something else in my software.