Andy Burns has brought this to us :
Harry Bloomfield wrote:

No showing 37.60Mbs, so taking overheads into account, that is now full
speed.

can take a while for the plusnet end bandwidth setting to adjust to the home
end ... give it a day.

Does this result show an IP profile that's close to your line rate, it would
normally be 96.8%

https://portal.plus.net/my.html?action=data_transfer_speed

It does now - I was quite concerned that the figures I was seeing were
WORSE than my ADSL prior to the service swap.