# HomePod latency on macOS 27

> Reports say HomePods on macOS 27 use a new buffered AirPlay engine at about 200 ms. What that means, which speakers still sit at 2000 ms, and whether you still need Lagless.

Updated 2026-10-06. Canonical page: https://lagless.app/guides/homepod-macos-27-latency/

> Reportedly, on macOS 27 with HomePod software 27, HomePods use a new buffered AirPlay engine at about 200 ms, so they may not need the 2000 ms default lowered. Other AirPlay speakers, including Sonos, are reported to still sit at 2000 ms. Lagless checks the delay your speaker reports and tells you when it isn't needed.

## What's been reported

The [Preroll project](https://github.com/ksha23/preroll) reports that on macOS 27, HomePods running HomePod software 27 report about 200 ms (9,600 frames at 48 kHz), while a Sonos Era 100 SL still reports 2000 ms. This is one project's measurement, not an Apple announcement; we haven't been able to verify it on macOS 27 ourselves.

## Known issues reported on macOS 27

Preroll's [research notes](https://github.com/ksha23/preroll/blob/main/NOTES.md) also list problems seen on macOS 27.0.1, including stereo pairs refusing to mix the old and new engines and `AirPlayXPCHelper` crashes on some routes. Treat these as early reports.

## Do you still need Lagless?

- **HomePod on macOS 27, reporting about 200 ms:** probably not. Lagless says so in its panel.
- **HomePod on macOS 15 or 26:** yes, it's still 2000 ms.
- **Other AirPlay speakers:** reportedly still 2000 ms, so yes.

## Questions

### How do I see what my speaker reports?

Open Lagless while your speaker is selected. The panel shows the delay it reports.

## Sources

- [Preroll README](https://github.com/ksha23/preroll)
- [Preroll research notes](https://github.com/ksha23/preroll/blob/main/NOTES.md)