This could be because of the recent patches. Update 4.2 made my fps drop by 20-30 then the next update fixed it. You can check with other games you used to play if it's actually the game or your laptop.
Well, Novabench scores decreased within 2 days. It was 2730. Then it was 2540. I did download some stuff. Games and Anaconda Python, Adobe Creative Cloud etc.
Then I have disabled some startup apps, some stuff like temporary, disabled some services.
Now it is showing 2730.
Does that mean, everything is alright with this?