Fiber optic connection

Hello everyone, Apparently the fiber optic network was installed for me. But I still have an old TV socket but in my menu it shows Swisscom TV that I have 550M/bits but in the speed test I only have 50M/bits to download. But that’s probably because my subscription only goes up to 50M/bits. But why can I have fiber optics with an old TV box? Greeting

Thank you very much, but now I saw that I have 200M/bits of internet according to my subscription but can only download 50M/bits. But why does it show 550M/bits in the menu for Swisscom TV, that wasn’t the case before. It also shows me that I can now watch UHD 3 times because I have 3 boxes.

So it’s me again, so I can definitely use all 3 TVs, so something has changed there, but how do I get a higher download speed on the Internet? Greeting

Sorry, of course, meant old telephone socket

swisscom speedtest via LAN cable