Detail this asset from Unity Asset Store: Original Link
This is a paid asset, but now you can download Auto Quality Chooser Free.
Auto Quality Chooser v2.3 (Latest version)
Auto Quality Chooser v2.03
Perfect compromise between performance and image quality for all devices, with one click!
Boost your game with one click. Just drag prefab on your first scene, and it will choose render quality on runtime, depending on the user’s machine.
Features:
– Calculates and sets render quality on start
– Tracks current framerate all the time and changes quality dynamically, during gameplay
– Correct FPS counting, even if game is paused
– Dynamic threshold for avoiding changing quality too often
– It’s open source, so integration with quality-menu is easy
– Automatically stops if user sets quality manually
– Battle tested on PC, Mac, VR, mobile and browser games.