I finished Act 2 last night and the lag and graphics errors got much worse in the Illithid Colony, the final fights and the final cutscenes. Assets took at least 5-10 seconds to load in, and some textures would keep flickering in quality if that makes sense, so graphics in cutscenes looked like something on N64 and the fight took forever due to the lag. Having similar issues still in the very first area of Act 3.
