Audio delay VLC on Firestick app

Hello, I use a projector on which I installed an Amazon Firestick on HDM1.

Some of my movies have no sound when I play them directly with the projector's native player, in which case I use the VLC app installed on the Firestick, but then the sound is not in sync with the image; there is a certain delay that I can't adjust.

With VLC on a computer, you can offset the sound with the J or K keys, but in my case, I don't have a keyboard, and I haven't seen anything in the VLC settings to adjust this delay.

This is not a delay from the movie itself because when the projector's player successfully plays a film, there is no delay, while when I play the same film with VLC, there is a delay.

Can you help me solve my problem?

Thank you.

jld272