So, this is a fix with anyone having delays on a Samsung tv with your fire stick. I have a 7 series Samsung tv, crystal uhd 4K. I’ve read so much stuff and these are the settings that just finally helped to where it’s perfect for me. Within fire stick: go to settings, display and sounds, and go to audio, and keep navigation sounds on, surround sound onto Stereo. Within advanced audio, turn off volume leveler and dialogue enhancer. Also, you can go to applications and then click on managed installed applications and clear the cache for anything that isn’t 0, but be careful not to clear data. And then go to my fire tv in settings and restart the fire stick. My Fire stick is plugged into hdmi 2 e-Arc. Samsung tv settings: Go to sound first and then sound output, select tv speaker. Go to sound mode and keep it at standard. Go to expert settings and make sure balance and equalizer are in the middle. Turn off HDMI e-Arc mode. Turn the digital output audio format to PCM. Turn the digital output audio delay to 0. Turn off auto volume and keep the sound feedback on Low. Hope all this helps!
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