I enjoyed this game halfway through, but I could not find a save feature. Could you please let me know how to save if there is？

I'm not sure why is giving me this issue, but this is the only game on steam that is opening sideways for me (game is opening vertical on my horizontal screen). When I first opened the game, it opened a extra window for a few seconds with some coding as well (it said something about blender). I tried to recreate the issue by reopening the game to screenshot but the coding doesn't appear again. Tried to reinstall, same issue still happens. Restarted PC, even re-adjusted my display settings and nothing. Is t...

mine is really choppy :-(