Studio Zero fixed a bunch of problems in the main game compared with the demo (mainly the performance). Now I'm running at high settings at 1440p with 150% resolution scale and i'm getting 80-90 fps in the city and in the desert. The graphics received a boosted, but i still can see the low AA, maybe they will fix in the future or a mod from Nexus mod will fix that problem.
Here's a screenshot
(=^・ω・^=) Kuroneko S2 - Ore no Imouto - Steam, MyAnimeList and Twitter - PSN: Gustavo_Valim - Switch FC: 6390-8693-0129 (=^・ω・^=)