So I bought a new computer: https://support.hp.com/us-en/document/c05577988
Everything works great except I am constantly rubberbanding every 1-2 seconds in all online games. This happens with low or high ping, ranging 20-500. I also download much faster than usual, my internet downloads 1mb/s but I'm sometimes getting 4mb/s and load youtube videos very fast. No other computer or device on this connection has ever faced this problem. Also, I am wired with the same ethernet as my previous pc which had no problems. Posting here was a last resort for me as I've searched for days disabling and enabling things, restarting the pc, doing whatever I can, Please help, thank you.
EDIT: 0% packet loss, just tested.
EDIT again: Basically, it's like watching the seconds hand on a clock, and every little move is a frame skip.