I read somewhere a few months ago that the Chinese have scouting profiles on all players they may encounter, including things like serving and receive tendencies, pattens of play, strengths, weaknesses, etc. The first game, especially in a best of 7, is to determine if these tendencies are still accurate and try out variations that may work. Winning the first game is not a goal, but diagnosing what will work for later games is key. They also have predetermined strategies for 9 all, as this happens so frequently in world class play, having a specific strategy planned out beforehand is a key part of pregame strategy.
I am a little surprised they don't do what they do in the NFL in the US, with coaches up in the stands analyzing game patterns and radioing down to the courtside coach what they see to help strategize. Maybe they do.