YouTube videos stutter, lags on iPhone 14 Pro with iOS 17

I am currently using iPhone 14 Pro with latest iOS 17 installed. Tried reinstalling Youtube several times but it doesn't seem to help. My network speed is pretty high, problem appears in both web and mobile versions of Youtube. While playing a video, after every 30~ seconds, there is a 1-2 secs long severe drop in framerate, which makes watching videos impossible. I am sure that it is not related to network because stutters still appear when the video is fully downloaded. help

[Re-Titled by Moderator]