Steam version needs some more polish but it will come. Bought at release and on a 4k display, multi core system, top of the line gpu and more ram than I know what to do with I get a paltry mid 30s to 40s gfps and scrolling the map is a pain so it's near impossible to play due to the jank but the patches have been frequent, hope they get around to fixing these issues soon.
The discord thread linked has that and a ton of other things tried as well such as fractional scaling on gpus, disabling game features, sdl1.2compat which is newer sdl backported etc.
- https://discord.com/channels/329272032778780672/105023368224...
- https://dwarffortress.mantishub.io/view.php?id=12054
- https://dwarffortress.mantishub.io/view.php?id=12023