Setting Time and Rounds in Kumite

Ok, when I first started to play this game, I set the rounds to 3 and the timer to 45 seconds. I want to change it to 2 rounds and 30 seconds, but when I changed it in the options menu it did not change it in Kumite. Is this because I started Kumite with those options set? Does this mean I can never change it? Any help would be appreciated!

 

You cannot change the number of rounds and the time per round in Kumite mode. Its alway set at 3 rounds and 45 seconds.