Came across this thread on the Wellington subreddit:
https://www.reddit.com/r/Wellington/comments/9y0hyi/anyone_else_experiencing_abysmal_internet_speeds/
Was curious if this is actual a known issue with Spark/Chorus? Seems like a group of users experiencing similar issues.
Anecdotally I have noticed an increasing in buffering when streaming video over the last 1-2 weeks but haven't done any testing past that.