Here are a couple of Moves and Combos that will make things go quicker. Pai and Lion might be a little tough to fight, even if the difficulty is on easy, set the timer to 15 seconds if you're having trouble.
Akira/Wolf: , + (Akira will Dash Punch, Wolf will clothesline from far or throw if close.)
Pai/Lau/Kage: , , ,
Heads-up Attack: when opponent is on the ground.
Wake-Up Kick: While rising from the ground, + for standing kick or + for ground kick.
If anything, some users suggest using Dural and use + for all 5 matches with the timer set to 15sec.