quest fog?Do you know how to improve the performance and efficiency of FOG in Unreal 4?

Thank you very much for your answers.
Try to make according to your youtube tutorial, but encountered a new problem.
When the mobile HDR effect is turned off, the Android mode does not support the POST process, so packaging into the headset has no effect, but the ordinary ES3.1 mode is feasible. I don’t know if there is a problem with the setting, or quest vr does not support it.