The pop-up notification at the top, disappears too fast, I can't read most of it.
It would be nice with an "Ok" button on it or so.
And maybe a Settings option to "auto-skip" after a delay, the delay can be set by a slider by the player.
Alternatively, an expandable "messages" menu, where you can go back & read previous messages. Maybe with an "Archive" or "Delete" button, when the player have read them & no longer have a use for those messages.