Did you play the game in web mode or standalone? I believe standalone offers experience, or there's something with the resolution of the web. Which I believe should be fine now.
That's a good point, they all do affect the % slightly in their own way, but balance changes have bigger effect. So like health increases, win rate and popularity % changes also affect it.
But I'll try my best to make adjustments so they seem more impactful in the future.