@leocg but my guy can you read? Literally everyone here typed that they have vpn off, windows defend off, antivirus software off, tested other browsers/apps, tested download/uploaded speed on speedtest and even considered re-installing windows. Completely awful reply.

For me it's mainly everything is slow even youtube/netflix until I open speedtest site and then it boosts up my other sites and download for a few seconds as well and then it drops again once the speedtest is done. No idea how that works, but that is a thing as well.