Sorry this Poirot interpretation of Poirot is so not classical Poirot or Agatha Christie but Hollywoods attempt to gain an audience that is not true to Agatha Christie.
First seen having Poirot do a marshal arts thing is not in his character. Poirot's character overall hated to sweat! His character loved the finest things in life, food connoisseur, he loved his clothes, paid the strictest attention to his self care and was impeccable therefore very self aware of how he looked and made sure nothing would disrupt that. He was a man of great intellect.
This movie lacked the deep intellectual realm of an Agatha Christie murder mystery. What is magnificent about A Chrisitie's novels, they are not about Hollywood action scenes but having to use your brain. First time in over 25 yrs that I was bored by an "Agatha Christie" anything.
I will stick to her novels and the BBC/British movies for Agatha Christie.