Lag when using Quest 2 for PCVR

About a week or two ago, I've been having a recurring issue while using my Quest 2 to play PCVR games using the Link Cable. My frame rate is fine when I start up Oculus Link but as soon as the Oculus Rift Home loads in my frame rate drops to roughly 2-3 fps (I've checked this using the Debug Tool with Performance HUD). If I start up a game or load into the SteamVR environment, everything is back to normal except if I use the Oculus button on the right controller to open the overlay, with causes the frame rate to drop again and making it unusable.