Worst call of duty Bug ever or Rigged manipulation from activision ?

Hello , I just found out that i played with massive input delay the whole year in BO 6 results in sensitivity being slower, enemies seeing me before i see them, sound is a bit off etc( like i would stream the game and not render on my high end PC). But when i change ANY setting mid game for example, " nvidia reflex" or "vram" even "ground mantle" my game starts to get normal speed for few minutes until it slows down again thats crazy. I did everything for fixing it, from windows/game reinstall, new driver / bios , testing 5 different controllers with and without overclock, new router, monitor hz from 540-240 with limited and unlimited fps, different NAT and port settings, testing internet provider etc. My setup ( hardware AMD 9800 x3d and 5800 x3d /nvidia 5080 and 4080 , software, network, settings, confg) is better than 99,95 % of all cod user and still it feels that PS 5 guys has better input times then me. And if it works for few min. i can compete in rank with crimson/iri if not i look like a diamond player. Before i found out about this "bug" i thought im washed and i deserve Diamond. I made a ticket to Activision support; they ask me for prove videos, screenshot and other things. After 6 weeks they had any prove and information, my ticket get closed with the words ! sorry but there are things even we can t help you please try the Bug report ! really ? Im sure many ppl out there get shit on and don't know they have the same thing.