Landing page help webflow

I am working on a landing page I have completed this but my client say that " Hi Moheen, did you test the landing page on your end? It’s very laggy. ". Any one can explain this

Here is my public share link:
([how to access public share link][2])

@Moheen make sure you have optimized all images and removed all unused classes from your project. You can also check your page speed score with tools like PageSpeed Insights to see performance issues.