Comment 4 for bug 1873315

As xwax requires you to have relevant hardware, here's a workaround to try if "rtprio" works for you:

1) sudo apt install jackd1
2) add "@audio - rtprio 99" to /etc/security/limits somewhere
3) make sure you're in the audio group
4) new login/shell
5) run "jackd -d alsa"