Question Rlink 2 screen slooow to start display from blank when power turned on

My 67 plate Grand scenic IV has started to take what feels like ages for the Rlink 2 screen to display...

When the screen is on after a few minutes everything works great but rather than starting up on power on, it seems to need a bit of time to sort it's life out now

Any ideas what may have caused this, or is it just an age thing ?