Is there any way to specify scroll-behavior runtime: Smooth?

Question

The estate scroll-behavior: smooth allows you to change the behavior of the scroll to be smoother.

Example:

#scroll{
   overflow: auto;
   height: 600px;
   width: 100%;
   scroll-behavior: smooth
}

#a, #b {
  height: 600px;
}

#a{
   background-color: red;
}

#b {
  background-color: green;
}

<div id="scroll">
  <a href='#b'>Faça o scroll</a>
  <div id='a'></div>
  <div id='b'></div>
</div>

But as far as I can tell, it looks like ownership smooth already has its own standard time to run the smooth scroll.

I would like to know if it is possible to increase or decrease the smooth scrolling time when using scroll-behavior only by CSS - i.e., without the use of Javascript.