Calculates maximum consumption/prodution rates of assemblers, plants, etc.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
Its not really a bug , but when you choose items per second, the mod does not display "items/s" but the producing time of items in seconds :-) (so not how many items you produce per second or minute)
I think you are mistaken. I compare what the mod reports with the built in production graphs.