Thanks for your reply.
There are quite many unfamilar background processes in task manager, anyway, I disabled superfetch, prefetch, chrome’s hardware acceleration (a lot quicker when loading sites like the youtube. ) telemetery, windows defender… lower mouse delay tmie in registry…. etc . I also turned off all desktop visual effects for performance…smooth scrolling, cleaned temp folders, saved win updated files….
I am still using the crappy 64GB biwin SSD that came with the laptop, 25GB free space so far. it’s not fast but acceptable.