Changing from a NON VR map to a VR map performance drop

Hello,

I have 2 maps, 1 non VR, and 1 that is optimised for VR. By default it is in the non VR mode, when I switch to VR mode I open the VR map and I am getting bad performance. But if I start the application in the VR mode I am getting 90FPS.

I have tried using the Openmap blueprint node and the console command to try to switch between levels and I am still getting the performance drop.

Does anyone know why this is?