Hi @Richacca, Thanks for bringing this up and I know where you're coming from.thanks for bringing this up. First, I want to ask if what speaker are you having issues with? If you are talking about the picture and sound is not sync. You may check this article about Audio and Video are out of sync on some steps to adjust the delay on the TV and your Sonos. And if about the line in delay, you may check this link about Line-in setup for further information.

Let us know what you have in mind with the advice above.

The Sonos community is always here to help.

If you are talking about the line-in delay, read this: https://support.sonos.com/s/article/4838?language=en_US