Audio delay on apple TV

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Okay, I found this issue: https://github.com/jellyfin/Swiftfin/issues/677 which doesn't have enough info to really say anything. It's also a bit stale considering it's August.

Only other things I could find have to do with HEVC vs. H264. I recall awhile back there being some discussion about the options on the server, but can't find them. There may be options in Jellyfin to prefer the fmp4-HLS or something similar which MAY help. You also might try swapping the player out, which I'm not sure if Swiftfin supports but my limited experience with an iPhone I flirted with a year or so ago tells me maybe...