Just looked it up, and wow you’re right. Only made $47 million in the US? Seemed to be unusually overseas-heavy.

From Wikipedia:

Variety reported that the film was generating only moderate interest among U.S. moviegoers, which could possibly hurt its box office performance stateside, with poor reviews and competition from the aforementioned films and Teenage Mutant Ninja Turtles: Out of the Shadows (released the week prior) also affecting its performance.