screen flicker

I connect oculus quest 2 device with unity with cable. Objects are constantly flickering after running the scene. On stage, it also strains the eyes. Can't find the reason, can you help? we are connecting oculus quest 2 device with cable. In Unity, we make android application settings . When we operate, fluctuations occur. When we look at the home screen of the device, there are also some fluctuations there. Could we be doing something wrong with this?