I'm not a MC speedrunner, I just saw this thread randomly, and I'm half a year late, but we never see any proof that you set those settings or that you even have either of the mods installed. Your Sodium video just looks exactly like what I would have used to expect as Vanilla from my old pc.

Also as a 13yo, I was able to upgrade my PC from my own money :p. It's not impossible to do so at a young age but it's also not usually trivial

Holy crap I just saw my pfp and icon thing for the first time... so strange