You are right that USA didn't play well in this match and when you give a target of 128 runs, it is just a piece of cake for the opponent who are as strong as West Indies.
USA missed a lot of chances in this match and also in the previous matches too. In the match against South Africa When Quinton de Kock was out, the United States of America had a lead because, after him they could easily beat to the other players and have come back into the game. Yes, not easily taking wickets but still had a lead. He made very good score which was 70 in 40 ball and it is such a good partnership. He was able to hit a century too but the ball of Harmeet Singh that doesn’t allow him to six on it and he lost his wicket there but still he made good and his team won the match.