You wanted performance improvements? You have them! As promised, we put pretty much the entire team onto the task of optimization for a few weeks. This process is still ongoing, and future updates will improve things further, but for now, you should have a much more enjoyable experience with this update in the way of higher framerates and far less hitching.
Many new features and improvements, too!
Boot up Steam or GOG to update and check out the full change log here: https://steamcommunity.com/games/707030/announcements/detail/1706239057785006373