Optimizing website performance: a challenge with Webflow

Hey folks,

https://palazzo-vittorio-veneto.webflow.io/

I’ve killed all Webflow animations, images loads on scroll there is couple lines of code for Swiper and GSAP for Hero block. All images are optimised in webp format.
There is no smooth and aesthetic scrolling like Webflow has. Site is lagging a lot and flickering. Anyone knows what could it be and how to improve? Stuck with it (edited)