I was kinder than I expected:
Needed to be tighter and more focused. A film based on a rivalry should make me feel invested in the rivalry. There's two or three scenes where they passively aggressively trash talk... and I just didn't feel it at all. And this is from a guy who likes Formula One. The third act is solid, despite what comes before.
A waste of £9.40 (Jesus Christ!) but not a Thursday evening.