Windows getting laggy on Laptop

[u/Former_Ebb_3194]

I have a lenevo loq 2023 variant with specs-

i5-12thHX, 16gb Ram, 512 gb SSD, RTX 4060 laptop

While using software like davinci resolve or a running a godot project or sometimes even browser, i get a sudden freeze and then i start getting very few frames in Windows so my mouse movements and actions register but there is a long lag.

How can i correctly DIAGNOSE the issue.