Confusion with WiFi speeds- can someone clarify please? ...

[m654321]

I'm renewing my broadband package with my telecom provider and the issue of connection speeds came up - of course the faster the connection speed the more you pay.

I then had a look at my own connection speeds with LL: 
- the information for an active network connection shows 300Mb/s (iwlwifi driver) = 37.50MB/s

This is important as our broadband provider provides a cheaper package with speeds of up to 17MB/s, and a more expensive one with speeds up to 38MB/s. 

Then I had a look at the my actual download speeds e.g. downloading TV programmes, podcasts...
- the information shows actual download speeds to be only between 165kB/s and 450kB/s = 0.17MB/s to 0.45MB/s.

This means the actual speeds in MB/s are between 80 and 220 times slower than the active network connection information indicates.
This is confusing - can someone clarify this disparity ...

Many thanks
Mike