rpg maker mv games are terrible on web browser

 I have a lot of problems exporting the game to be playable on browser, sometimes the sound is just... not there, sometimes some files are missing, it's really strange, so I exported it on windows, it make the game a bit slower, but at least it work ! 

if anybody could review this little game, it's not even a demo, but at least tell me if the game is playable lol I know it lack sound, I'm working on it :)