Yamaha RX A2010 problem: very slow loading mp3 from USB

Hi guys,

I just set up my new Yamaha, try to play some mp3 from USB,( by the way the same usb I used  in old Yamaha 1065, also, try it in SOny recorder

, working very fast everywhere except my Yamaha 2010.

There is notice, that if usb contains a lot of files then it takes times, but my 5 years  old video recorder is faster, and there is not much files anyway.

I can not believe this. Does firmware update help ? I would rather avoid any update.

Many thanks