Images streaming using Indy client side

[rlebeau]

But I was wondering if used TIdTriviaFTP with stream compression would be faster than using TCP?

You are comparing apples and oranges.

Also, How do companies who made Zoom for example manage to connect 2 computers in a video call without me have to configure anything in my router? Do they use tunneling too?

Have a look at NAT traversal techniques, for starters.