Step 3:Press right and youll jump straight onto the performance overlay slider.

Then, just press the Quick Access button again (or repeatedly tap B) to exit the menu.

For serious tuners (or the powerfully curious) only.

Step 1 of how to use the performance overlay on the Steam Deck: Press the Quick Access button on the Steam Deck.

Step 3 of how to use the performance overlay on the Steam Deck: Select and move the performance overlay slider to the level that displays your desired amount of detail. Close the Quick Access menu after.

The Steam Deck performance overlay on its Level 1 setting.

The Steam Deck performance overlay on its Level 2 setting.

The Steam Deck performance overlay on its Level 3 setting.

The Steam Deck performance overlay on its Level 4 setting.