I dont know why, but when im installing Astral Sorcery(minecraft forge 1.16.5) sun start following my mouse. And when im look down:s tarting night by light(tourches flashing like in night), but not as time, same is sun up

That's not an AS issue, sounds like you've got conflicting shaders, Optifine doing something weird, or something else impacting it that isn't AS.