I might have some partial answers for you.
Are you only talking about the video overlay tracks, or music, photo and title tracks too? On my Galaxy S8 phone, I have 1 main track and can add at least 7 overlay tracks and at least 4 music tracks with the latest version of the app, which is 6.9.1.
I do get a
Video Overlay Maximim Exceeded message, however, after adding 3 video overlay tracks so I'm limited to 4 total. I can still add more overlay tracks as long as the content is titles or photos. Music tracks aren't affected by this limtation either.
As for determining which SoC you have, either search online or install the free CPU-Z app from the Google Play store. It shows my phone has a Snapdragon 835 with 8 cores.
This message was edited 1 time. Last update was at Jun 30. 2020 13:57