i just build a pc with a ryzen 7 3700x. so i tried to play a youtube video on 8k but it doesnt seem to really work. its laggy and keeps buffering. on the other hand i have another pc with a ryzen 5 3600 but it is working just perfect on that one. also when i start the 8k video the usage in task manager shows 100% on the ryzen 7 3700x. i cant understand why and hope you guys can help me.