This may not be *exactly* what it's doing, but:
- MJPEG is a thing, and essentially JPG-compresses each frame individually, the same way that still images can be JPG-compressed.
- GIMP has a similar quality slider with the same scale, and an option to preview the compressed image and tell you the resulting file size.
So I would not be surprised if the teleport were MJPEG-compressed, and that's the JPG quality setting. Load a frame (or any representative image from a camera) into
GIMP, File->Export it with a .jpg file extension, check the Preview checkbox, and play with that slider to see the effect on both the image and the file size, which for video is the amount of data that needs to be sent for that frame.
If you're impatient, a lower number uses less data and looks worse, but you won't notice if it's a bit less than 100%. The point where you do notice depends on a lot of things, so you'll have to experiment to find what works for you. If your rig can support 100%, then you might just do that and not worry about it.
