The primary reason to ensure you are running the v17.05.2022 build is stability. This update addressed several long-standing memory leak issues and improved compatibility with modern high-resolution displays. For players using community-made English patches or trainers, this version is widely considered the most stable "baseline" for modding. Support for 4K UI scaling improvements.
In duels, do not spam "Power Strike." The v17.05.2022 patch added a "Feint" command (high AGI) that stuns an enemy for two turns. Feint -> Power Strike -> Heal is the unbeatable cycle. Romance of the Three Kingdoms XIII v17.05.2022
For more detailed information, I recommend: The primary reason to ensure you are running the v17