I have given it a couple of tries on Tabletop Simulator, solo but with multiple spirits, to get a feel for the game. Once I actually figured out the rules, it's still a long game (playing solo, about 2h per spirit/board, depending on their complexity and interplay). Best I can give to speed things up is to only plan your fast powers, and avoid overthinking slow powers : too many options to work through otherwise, given fear cards / events / explore actions can make it hard to predict what the board will look like by then.