The layout and design choices of the mobile version of this site.

The mobile version of this site is perhaps one of the worst design sites I've ever been on. It is slow and clunky, uncomfortable, has its own oddly mixed up features, and is a complete hassle to use. If I don't have a pro account I can't transpose music, but if I go into practicing any kind of sheet music I can transpose a song. What is the point of this? How come when I go on to the website of this on my phone, I can see and have access to the synthesia like clone of where you can see the notes falling on the keys? Not to mention that feature is horrible because the notes don't align with the music, there is delay. Alongside the fact where if you pause, you cannot see the notes because they are covered by the song duration bar. I can't get rid of this on my phone. But for some reason with the mobile app, there is no feature of this synthesia like clone. I'm also having several issues, with not being able to read the full name of certain classical songs with long names, which then makes me have to press the piece just to read the title, but also there is often an issue with whenever I go into practice for some reason it won't reset the song from the beginning even when I press rewind. This is one of the most uncomfortable apps to use, and sites to use for any kind of mobile device. There is a YouTuber who is apparently in charge of the design team for this company. Maybe he's not focusing on any of the mobile aspects, whether he is or isn't. I am beyond disappointed, this app has been nothing but frustrating me when I'm trying to obtain the simplest sheet music to learn simple pieces.