Unsure what flair to use sorry.

My computer takes forever to open any application, will not open tabs on google, will not respond for minutes on end while opening stuff it normally opens straight away, etc etc.

Checked task manager, no apps are taking up to much usage, cpu appears fine, ram appears fine, gpu, ssd, hdd, psu all fine and dandy or so it seems.

Nothing malicious, no virues, have had windows defender and my own antivirus go through everything on my computer.

Nothing is working and i can’t find a route cause so it’s just very frustrating and any help would be appreciated, thank you all!