Due to the lingualeo extension, the layout of the site slows down. What is the problem?

Question

Google Chrome

Hello! Google chrome browser with lingualeo extension.
Designed the site, the filter buttons are slowing down. I disable the lingualeo extension, the site starts to work quickly.
At the same time, other sites with the extension enabled load very quickly.
What could be the problem?
Video: https://youtu.be/sWtBFLeKs9M