Lady Westholme (Bacall) deserves an olympic gold medal

When the arab boy begins to run we can see Lady Westholme in the hotel with Poirot, 6 seconds later the arab boy (still running) arrives to a street market and Lady Westholme IS THERE!!!! buying some old vases, the boy runs in another direction and 6 seconds later is killed by Lady Westholme!!? LMAO All this happens in less than a minute!! How in the world can Lady Westholme run faster than the arab boy and Jenny seagrove (who is pursuing the arab boy)?? LOL