Remove sliding left-right without click
Very annoying behavior - I like to spread the left menu but it slides to the right just when I click on it and it slides back.
Really annoying - because of its lag
Left menu only slides open or closed based on user click.
Mack Altman commented
While I don't believe the sliding effect should be removed, there should be an ability to lock the menu in the user's preferences.
By default, I would lock mobile devices at the icon menu and desktop at the expanded menu. Although most users may not explore to find the differences, this will allow them to notice a strict difference between interfaces.