Also having bad youtube performance last few days (some other website seems sluggish as well)
(Openserve 500/250) , Gauteng.
First thought it might be my line, gave everything a cold boot this mornign without change. Youtube not even able to play 1080p tonight

odd part is, if i access via a VPN(Netherland) youtube speed seems fine.
NNTP downloads does not seem to be drastically affected, nor google drive upload/download.
any method to provide youtube specific feedback?
*issue seems to be intermittent, as re-testing an hour later does not produce the same issue.