OK, you know I know all about peak time and other reasons for slow downs but it has been really bad for the last week or so. Decided to run automatic tests through the night and here are results that speak for themselves. It does make everything noticeably slow when this bad. Forget file downloads and streaming video.
I did set the size to 3 MB simply because it was taking forever to run with it set to 12 MB and why waste the data if the lower tests shows accurate results anyway. Speed did start to climb back up early in the morning.
Like I say, it has been going on for at least a week, I believe quite a bit longer though. I can run more tests at night if you want. Just ran another at 12 MB and it is pretty bad also.