Hello,
1/ You should enable lazy load for first visible section slideshow -> https://prnt.sc/-INYRxscdY6K .
2/ We see you have a few sections which are hidden on desktop but shown on mobile devices -> https://prnt.sc/Zt-dZkyxfJzt and https://prnt.sc/En9Plzw7pDJ5 and https://prnt.sc/BthU0RW-wSMG etc. You must know that all sections are loaded everywhere and are hidden/shown by simple css code. Please, try to minimize duplicated sections content. Example:
2.1/ You have 85% similar sections at the same top of the page -> https://prnt.sc/JESmtkvoRKDz . All differences are: height of sections, a little bit difference texts, and no button in the «mobile» section.
2.2/ It is much better to get the same result using few tweaks. Create extra text which will be hidden for desktop and tablet -> https://prnt.sc/h1LBGfxsyqUl and hide origin text for mobile only -> https://prnt.sc/krx1LpbwIoyO . We sent you template (check the Private content area) where we did modified your main section in better way (without creating an extra section with the 90% same content but modifying origin one on responsive).
If your site is live, create a staging site (full copy of the existing one), so we can do tests there without affecting your business.
If your site is live and you need further assistance, create a staging site (full copy of the existing one), so we can do tests there without affecting your business.
Regards