I'm still on copper, and get 13MBps on a good day. However I've noticed that my NZB downloads, which used to get to 1.3MBps now sit at 68Bps, meaning I'm getting about 5% of the speed I used to. When I test my speed on testmy.net while downloading the NZB then during the random data download my NZB speed shoots up close to previously experienced speeds, and then rapidly goes back down after the speed test completes..
My supposition, and I'm open to being challenged/corrected on this is that this is clearly traffic shaping from Slingshot, my ISP.
I get and accept that at certain peak times traffic is shaped, but this seems to have extended to near 24/7 in my case.
My question is - having recently had UFB come to our street, is there any point in upgrading? Am I likely to experience the same type of shaping on UFB?
If I was a conspiracy theorist - which I'm not - I'd say the shaping I'm experiencing is a tool to incentivise UFB uptake.