Goldendust20

Hello, I have this text scroller I've built but it glitches after what I suspect is when it restarts. Is there any way to make this a smoother transition? I'm going to have a lot of these with various text/widths and there will also be a second row with the text in reverse just below it. Here's the website it glitches on: https://stable.stable-demos.com/who-we-are/ (Pen broken ? ) Thanks!