Oculus Link allows you to fine tune your graphics preferences via the Oculus desktop app. As a general rule, the more you crank up display options like refresh rate and render resolution, the more the overall performance of Link can be negatively impacted.
If you find that Oculus Link looks choppy (screen stuttering, frames dropping, etc) try the following:
Open the Oculus app on your Computer.
Click Devices on the left side of the app.
Click Graphics Preferences.
Click Reset to default.
Keep in mind, if you've previously adjusted any settings for Link with the Oculus Debug tool (including Encode Bitrate, Encode Resolution Width, Pixel Per Display), changing the graphics settings above can negatively impact your performance.
To fix this, set all numerical values you changed to '0' (zero) and then restart the Oculus Desktop app.