aos library slow animation angular

  <script src="https://unpkg.com/aos@next/dist/aos.js"></script>
  <script>
    AOS.init();
  </script>

$ npm install aos --save
//In angular.json
styles: [... "node_modules/<your-site>/aos/dist/aos.css"]
//In component.ts
import * as AOS from 'aos';

ngOnInit() {
    AOS.init();
 }

//In component.html
<div data-aos="fade-left"></div>

  <div
    data-aos="fade-up"
    data-aos-offset="200"
    data-aos-delay="50"
    data-aos-duration="1000"
    data-aos-easing="ease-in-out"
    data-aos-mirror="true"
    data-aos-once="false"
    data-aos-anchor-placement="top-center"
  >
  </div>