Honestly… you forgot this:
So the result is this:
Let’s face it. There’s no point in optimizing menus and math functions that waste a millisecond when you have a menu open, a game paused, and UMG open. It’s really about what the developer knows and what low design you have for the project. 
As a disgraphics person, I can say for myself that blueprints are one of the best things UE has received, especially after UE script, which was difficult.