Font problem only on the tablet, elementor

Hi,

I am new in wordpress and I am working in elementor. The page looks Great on the desktop, mobile and tablet elementor view.

I am compared two tablets:
1. Looks OK the same like elementor view

2. The font is broken, only on some pages, not overall on the web site
I mean broken (The font change size of text, some words are big, some small, not possible to read). If I change px to em, then is OK.

What to do?

Thanks in advance.