Here’s a video in case it helps to understand what I am talking about.
What I want to show with this video is the visible delay of things moving around in the menu. I click something, I am displayed something which my brain starts to evaluate and read, and then a fraction of a second later things are moved and I have to start over my interpretation of what I am seeing. On days of slow internet I occasionally even point and click on something that magically disappears from under my mouse and I get taken to the wrong page.