Part of the website is choppy while scrolling

Design help General
1

Hello,

I came for advice. Part of my website is choppy while scrolling and I am unsure what the issue might be. The part contains only text so there are no images or videos that need to be loaded.

Here is a link to the website: www.gadzook.cz
(The choppy part is on the main page in the sticky section called “co umíme”.)

Any tips to fix this or improve it are appreciated.

2

When I tried removing the “Vybrané projekty” section - it seemed like the scroll was smoother. I would test that out and see if that section/interactions are the issue.