When I drive my kids they often watch cartoons on my android phone with the cartoon's audio coming out of the car speakers, connected to the car's audio system via bluetooth. Unfortunately, there is a very visible 1-2 seconds delay between the video (as observed on the phone's screen) and the audio. There is no such delay when listening to the audio directly from the phone's speaker. There is no noticeable delay when the phone is connected to the same car for the purpose of phone conversations. However, the combination youtube video on the phone's screen + audio from the car's speakers has this annoying 1-2 seconds delay.
Thus the question: what may be causing this and how do I reconfigure whatever needs to be configured in order to fix this?
In case if the specifics matter, the phone is Samsung Galaxy S5, the car is 2013 Honda Odyssey with built-in audio system.