Check both playback paths
Use a scene with clearly visible speech or a sharp sound. Start at the same timestamp, then switch audio output without changing the stream. If both paths are equally delayed, check the player and receiver as well as the source.
Keep compensation specific
Apply any lip-sync adjustment only after identifying the affected audio path. A setting that corrects one wireless device may add delay to the speakers. Record the player, headphone and device models if you ask for help.