Saved you a click:

A default feature called auto-discovery scans folder contents to determine optimal display settings, and while this sounds helpful in theory, it’s been wreaking havoc on performance since the Windows XP era.

I fixed my mental state by not falling for clickbait titles.

It’s wild this isn’t common knowledge. That shit and the fix has been around since fucking XP.

If you didn’t know this, you probably also don’t know about how Windows continuously polls for wifi APs even if you’re already connected, leading to massive lag spikes about every 30 seconds or so. If you’re on wifi, you can fix the lag by simply disabling the polling service once you are connected.