https://bugs.winehq.org/show_bug.cgi?id=44586
--- Comment #3 from zaplo00@mailfence.com --- This game is RPG / visual novel hybrid.
I should note that gameplay parts in this game like inventory GUI and dungeons are 'choppy' most of the time, animations lag in them and sometimes mouse clicks don't register if animation is not yet finished.
Visual novel parts are very smooth and have no performance problems at all. In those parts log file didn't grow show i think they don't use quartz or do something different than gameplay parts.