Ha ha so funny you are
@hlfway2anywhere !
The Lightning cable has no decrease in charging rates.
What does matter on these newer phones for charging speeds are the charger itself.
Using a 5W stock charger ? Will take forever.
I use a 10 or 12W iPad charger at work which charges almost twice as fast as the 5W.
Then I have got the 18W USB C charger which charges even faster.
I also have the 29W & 61W USB C Mac chargers - but haven't tested them out with the 11.
18W: