Higher overall fps since 1.2 but introduced some sort of strange stuff

I am not sure if I am dumb or it was like that and I am placeboing. Since 1.2 overall fps is generally higher and I mean in places I was getting 40-50’s now it’s 80- 90’s but along with it , 1.2 introduced some strange frame skipping, and I don’t mean stuttering it’s literally every 10 or so frames one feels like is being skipped.
also some strange lightning refraction/shadow quality/texture quality filtering pops up especially when zoomed out more. It’s like a monster baby of anti aliasing and sharpening filter together.