Text flickers for a moment

I used a json file from the Lottiefile.com library on my wordpress site with the Elementor plugin.
When switching back to the home page from another page, the welcome message appears very briefly before the animation. How can I change this? This is how it looks like: https://www.screencast.com/t/Vsv1V4rds5
The page URL is: www.aero-club-1949.de