The email is sent now.
I wrote the email last week and thought it had been sent, however my email was broken and didn't send the mail. I repaired my email today and the mail got automatically sent. Sorry for the inconvenience.
Specs:
File type: mp4
Bitrate: Tried several: 10.000 to 80.000, current videos have 50.000
Resolution: 3840 x 1920
Length: 9 minutes
Frame rate: 25 fps
Codec: H.264
Size: 3 GB (tried different file sizes, from 1 GB to 6 GB)
Audio:
Bit rate: 188kbps (tried lowering this as well, no luck)
Stereo
Audio sample rate: 48 kHz
We used Davinci Resolve to edit the videos and a GoPro 360 degree camera to record.
Running developer mode, Skybox runs at 60-80 fps while the videos play between 3 to 8 fps.