There are probably much more precise ways to approach but there's a bunch of blind troubleshooting you can do to rule out whole areas.
Try a different DAW first to rule that out, then you could disable your audio interface and try a recording using built-in audio port only.
If the problem persists you could disable your network adapters (all...) and any firewalls/antivirus and try then. After that, you could remove the nvidia card and try with on board graphics, if you have that option.
If it's going to take 30-40 minutes to show an issue that's a few hours work so...fair enough if you don't want to.
This is all on the assumption that your setup once worked fine, and that you're testing with a blank session - One audio track, no effects or virtual instruments.
If all of that yields nothing or you don't want to go down that road, consider running a memory test for a few hours at least.
Specific processes taking longer than expected would be a real red herring if there's any kind of hardware failure at play.