Hey man. I had same issue until I did a few things. And it absolutely has to do with vegas and the game too. even if it looks good on your computer it can upload looking bad…so forget that advice that it wouldn’t.
-In vegas, right click on your clip, go to switches, then disable resampling. do this on any still image or text you add too. anything left with resampling on causes pixles in your vids uploaded.
-In Game…turn off post processing in any of your games…this will be a game changer for your vids. I learned this from one of my viewers.
Hope this helps
setting you guys have come up with in the options look good. not at home but they look correct. combined with the things I said and your option settings..you should be golden.