[spiderborg]

same here

firstick 4k, kodi 18.6, firestick os up to date

delay about 300ms

no way to fix it.
Ok this works, but is possible fix in kodi source?

Because isn't precise this fix, and can be possibile that some content, have another delay. 

I’ve found that the 300ms delay works great for everything as long as I have pass through disabled. If I try to use pass through then everything is out of sync at different rates. I just put up with it for now until I’m able to get a different Kodi box that does everything (if there is such a thing) 

Infact with passthrough, if i use my home cinema, is impossible, and i must use 2.0 of my tv

So with firestick is impossible fix this issue?

You need a firestick 4k for that?

I have a 2nd gen and 3rd gen Fire TV (not fire tv sticks). Both are 4K compatible. Same problem for both of them. I tried for weeks to find a solution. It has something to do with the way the fire TV is made and Kodi developers aren’t going to make a new build for it. I’m just going to find new hardware soon.