Fps Drop

Ive tried every autoconfig.exe , steam startup codes, and in game settings and videconfig settings, my specs and windows are updated im getting around 110-140 fps most of the time but sometimes it drops to 70 80 and because of that its not smooth its like laggy .Im playing with 1920x1060 60 hz monitor ive tried rtss scanline sync with -1 -20 -30 everything it capped my fps 60 and it was so good ,game was smooth as butter but i get input lag so i cant play that way too.Is there a way 70-80 to 140 fps without lag or scanline sync 60 fps without input lag my cpu usage is like 70-100 but most of the time 95+ and my gpu usage is 70-100 too but its unstable like my fps
My specs=

2x8 16 gb ram

i5 6500 3.2ghz

msi gtx 1060 6gb 

My fps drop to 80-90 in some places on Kings Canyon and Olympus. Most often it stays around 130-144. I have a clean Windows 10, I tried different drivers for the GPU, nothing helps.
My hardware is gtx 1660ti, ryzen 5 2600, 16gb ram 2666mhz

I have been having a serious issue with my FPS dropping randomly in-game, especially in fights. It has been happening during the new season (season 12). The drops are severe. It suddenly drops from 110 FPS to 17FPS and it is very annoying. I have tried setting the adaptive resolution target while disabling the Anti Aliasing option and putting all video settings to low (texture streaming, filtering, ambient occlusion quality) and all the other video settings that accompany it; but it still brings the frame drop. In addition, I installed it on an SSD drive. My specs for my gaming laptop are the following;

Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz 2.59 GHz

RAM of 16.0 GB (15.8 GB usable)

64-bit operating system, x64-based processor

Windows 11 Home.

Graphics card is a NVIDIA GeForce RTX 2060 (6GB RAM)

Any help would be greatly appreciated 🙂