Turn off count in

[pdxdjazz]

You can make the count-in silent by turning off the count-in volume on the count-in control screen (accessed from the tempo control screen, tap the metronome icon upper-left). You can choose a 0, 1 or 2 bar count.
You can alselect "Auto" which will count 1 bar for slower tempos, 2 bars for faster tempos.

irRp playbacks from the app can't start instantly because the app needs some time to construct a new track for the song each time.

If you export the audio to another device, you could trigger it to start instantly. You could also combine multiple songs into a single track to play one right after another.

You could also start a song playing, and immediately pause it after the count-in. It would then start to play again immediately when you touch play.
)BOB