This wouldn't be a huge buff just a little QOL with some precedent. Having his ult tick every 1/2 second (for 1/2 the damage per tick) would really smooth out his game play. This change has already been made to mundo's burning agony and garen's spinny thing.
Wukong doesn't need buffs in the slightest.
Something to consider is that it would be more than just a QOL change, since it would cause it to stack 
twice as fast. Not saying your idea is bad, but rather there could be more consequences to such a change than the intended pure QOL.
Wukong is just fine. He's perfectly balanced right now imo. Just because he's never played in LCS doesn't mean he's bad. They tend to play mostly OP champs. or with a clear comp. in mind.
