Optimistic me didn’t opt for potato when starting game. After a few turns, the game was hanging the absolute majority of the time. Moving a single step would entail waiting for 5-20 seconds for a frame advance, where the selected tile got highlithed, click it, then wait another 10 seconds for the move to start, etc… I took a sample of the process, using Activity Monitor; you can get it from github.
I’ll try the potato next time, but it didn’t feel like just graphical issues. I may, of course, be wrong