Sound is running slow

i have created a sound function in the root place. I renamed the root environment. I put autoplay. But when i launch it takes a minute for the sound to actually start playing. This is my project picture.

how do i make the sound run instantly?

and also how do i change the loading screen from the default loading screen???

This is a restriction on the browser, [SOLVED] Erratic Behaviour Of Sound Entity

Documentation here:
And simple example here:

ok, thanks