I mean, it wasn't Thor Ragnorok bad.
So you also think “this” because you are on the internet.Only nikkas on the internet think this
Essentially BP and Infinity War were filmed at the same time. So the Russo's got the same crew that did Winter Soldier & Civil War to work on the movie. There's definitely need to be an improvement all around with the action for part 2 though. You would think having a great martial artist like Marrese Crump personally training Chadwick Boseman and the other movie cast members, the fights would of been way better.
I know Coogler likes to work smaller less known people on his films. If so he should definitely look into Jeff Ward. Jeff Ward who has been stunt coordinator and fight coordinator for many years for Snipes in most of his action movies, he's also worked with Spike Lee many times too. He's also an second unit director too. He's a great martial artist as well. I think he would be a good fit for them if they wanted someone with experience on both small and larger scale productions. He even recently worked on Dr. Strange too. Check his IMDB page he's worked on tons of movies.
Jeff Ward - IMDb