title: How do I slow down the default speed of smooth scroll using only Javascript?
body: <p>My goal is to press the enter key, and have the site scroll to the bottom. I have set the scroll behavior to smooth and everything works like it should, except the default speed of smooth scrolling is way too fast. How do I slow it down? Below is my code. No jquery please. Thank you!</p>
  
  <pre><code> document.body.onkeyup = function(e){
       if(e.keyCode == 13){
            window.scrollBy(0, window.innerHeight * 8);
       }
   };
  </code></pre>