If you're playing video games on your PC and are noticing some input lag, it might not be a hardware problem you're facing, but a well-known Steam issue.

Using Remote Play is a quick and easy way to turn your Steam Deck into a PC controller. Here’s how you can set it up: And that’s it! With this setup, you'll stream your game to the Steam Deck, but ...

You can use an external controller with the Steam Deck if you prefer it docked rather than in handheld mode. These third‑party controllers are great options.