When the root movies folder is set (the first time the app is launched, thus access to that folder appears to have been granted in Android settings), opening a video file through a file explorer (I use Solid Explorer) takes a few seconds (up to 10 some times) for the video to start playing.
If no folder is set, or you delete access to the folder in Android settings, videos start immediately, with no delay at all.
When the root movies folder is set (the first time the app is launched, thus access to that folder appears to have been granted in Android settings), opening a video file through a file explorer (I use Solid Explorer) takes a few seconds (up to 10 some times) for the video to start playing. If no folder is set, or you delete access to the folder in Android settings, videos start immediately, with no delay at all.
Device