Mei gets the least amount of points in Stadium, and it's driving me crazy.

I usually play as Mei but she consistently gets the least amount of points in Stadium, even when spamming walls in good places to get high MIT. I thought maybe Im just really bad at it so played one Stadium game as Reaper. Mind you, my aim isnt fantastic and Im really bad at following targets, yet I had the most kills and points for the majority of the map and was astounded how much easier things were, especially the absurd amount of points I was getting by comparison. What I am really good at is stratigic thinking and can split parties up very easily, especially with Coulder (assuming its not bugging out), you know, the main way to play Mei, but but there's no real way to get points off of that. The other team wasnt bad either, it just seems like Mei isnt balanced to get a fair amount of points compared to other characters unless youre one of those players who have incredible aim or something with a non hitscan weapon. If it helps for context, Im currently sitting at Elite 1