mobile issue

Hi there, many compliments for your plugin. When I write a post using mobile devices the screen is messy and not optimized. Is it because I don’t have the premium version or what?
Thanks for your help. I attach a screenshot https://drive.google.com/file/d/1ZAUywxtW9QA1uOs6JU7c_jX6YZtG8J2Z/view?usp=sharing