If this sounds like your week
Your right-click menu takes a beat to open — and that beat is shell extensions.
Every app you install can add a shell extension that runs when you right-click. Stack up enough of them — archive tools, cloud drives, editors, antivirus — and the menu visibly stalls while each handler loads. The lag is small, but you feel it dozens of times a day.
Where tooling usually breaks
You can't fix what you can't see, and Windows hides this.
There's no built-in screen that lists context-menu handlers and what they do. The usual "fix" is regedit spelunking or a cryptic third-party list — risky, tedious, and easy to get wrong, so most people just live with the lag.