Dji mavic live feed vs Drone FPV (Please Help)

As you probably know the mavic is a small drone that can fold up to fit in a backpack, but also records and transmits 4k video. I have seen videos where people will fly their mavic around buildings, while looking at the live feed. The live feed never drops connection, distorts the image, has any nose or lines running through the video, and still manages to have relatively low latency while transmitting live 4k video. FPV drones on the other hand, can lose connections when you go through a big building, constantly have lines and noise running down the screen, and have a low image quality(600 TVL+). This is honestly very confusing to me, as they both have approximately the same range. How can the mavic have such great high-resolution live feed, while FPV drones have such horrible live feed? Does it use a different transmission type? This entire thing is utterly confusing to me. Thanks for reading if you got this far, and if anyone knows the answer please tell me. Thanks

Dji adds some black magic to their transmission equipment.

ringolong said:

Dji adds some black magic to their transmission equipment.

Click to expand...

Honestly, at this point, im thinking they might have some wizards working for them. I really just wat to figure out how they do this, so I can use the same technology on my quad.

You can purchase a lightbridge unit, but I don't think that they make a standalone occusync unit which would have less lag.