I use a bluetooth pedal (irig blueboard) that allows me to control start/stop next previous etc very easily.
By default I set about 12 seconds between songs. I'm not too chatty.
The pedal provides an override that allows either more time to talk or ability to kick into the next tune immediately.

I use a $10 ios/android app (Anytune Pro)that plays 320kbps mp3's (all you need)
It also handles my setlist management admirably.
I carry a tablet to the gig and my phone as a mirror backup. I use a cable or bluetooth to my PA.
Its all you need to gig successfully with backing tracks

Simple, cheap and reliable.
Hard to find these days.

biab2024(Mac) Latest Build
Mac OS Sequoia 15.0.1
Apple M2 pro 32GB Ram
Logic Pro 11