Audio sync between Apple TV and Airplay speakers

I’ve been trying to fix the audio sync issue between my Apple TV (4K) and airplay speakers (Sonos). There has always been a slight audio delay, and I was hoping that the update to iOS 13 and tvOS 13 would allow for proper calibration. However, the utility provided seems to only work with the native speakers, and not with airplay audio. Does anyone know if there is a way around this, or some other way to calibrate/sync the video and airplay audio on an Apple TV?

(As an FYI, my setup has my Apple TV plugged directly into a projector, and then I use a Sonos beam and pair of play:1s for the sound.