Yutiliti and Lightstruck line speed lies!!

I keep complaining that i have half the speed i am paying for!! I have a 100mbps line and it tested on their prescribed app less than 50mbps at the router with a appel ipnone 12 pro. Apparntly just with a plugged in ethernet cable can i get 100mbps. Still dont have the answer where on my where the 12 pro max take that cable!! Sean Mileham aned Christopher Reynolds is just spinning stories and today my download speed is 68mbps. and my upload speed is 3.2 mpbs tested now. So my wife use our MTN router that the contract had thankfulle not exspired yet to do her work on skype! So how is that possible!!