If you have ever considered why your fibre internet is slower than you would expect maybe I have the answer.
Recently I was passing where fibre cables were being installed. A mass of cable was on the floor in the figure 8 configuration which reduces the stress in the cable to the minimum.
Watching as I walked the guy in charge of the installation walked right over the cable, shortly after a motor bike drove over it. Either of these activities will provide distortion to a fibre cable. I pointed this out, in Thai, to the man in charge who was slightly taken back as he did not know this.
It does account thought for any slowness in your network. The supervisor was not aware and I don't blame the people doing the installation. They are not adequately trained for the installation of such cables so you cant expect them to know what they should and should not do.
The point is if your connection is slower than expected it could be due to people walking on the cable.