To fix the lagging issues with Oculus, ensure that your PC or laptop is Oculus Link Compatible. Besides that, you can try enabling the Oculus Performance Overlay (HUD), kill the unnecessary background processes, update your graphics drivers, update Quest 2 and Oculus software, or update WIndows. If that doesn’t work, you can try using a different USB cable or USB port or change the refresh rate and render resolution in Oculus.