Hi Manu,
Here is some suggestion about the update. I have to say that your update time is always close to the Grand Slam, especially this time and the update at 20th May, which cause a lot of inconvenience in the official tournament (we also have tournaments in China). Some details might be totally different when playing. For example, the return seems become more difficult after this update, the character would be more likely not to move and miss the ball than before, however it seems not mentioned in the update note.
So it would be better to consider the update time. Or maybe prepare a test server for the latest update, thank you.