Challenge timer in slow-mo? or is this a bug?

I'll post this in bugs and technical issues too, but I can't tell if seconds on the challenge timer taking two real-time seconds per in-game second is intentional or not.

If there's player feedback about challenges being too short then fine, that's not really a problem I have but I don't care if others do (once again, asking for a difficulty setting so we can adjust these problems ourselves). I just don't think making the seconds last longer makes any sense at all.