What to do if the lag is high when playing Xuanyuan Battle in the United States? Unlock method

The national server game "Decisive Battle of Xuanyuan" is a popular online game in the United States. "Decisive Battle of Xuanyuan" is a retro classic 2D hardcore PK online game developed by Zhongchuan Network and represented by Zhuhai Xinyou Technology. The game is based on historical mythology and has a rich game plot. The game has three different professions, each with two sets of different styles...