vr.spectatorscreenmode resolution ?

I´m testing the spectator screen mode with version 4.17.2. While it´s exactly what we have been waiting for I´m having trouble with the low output resolution. We want to use it to capture VR footage from the vive for video editing. Is there any way to increase the resolution of the spectator screen output ? It seems to be something like half res, very blurry. I tried all modes and only mode 1 and 5 work, with the low resolution. I also tried to set different resolutions with r.setRes in the levelBP without success. Basically I want to output a sharp Full HD on my monitor of the vr content. It doesn´t matter if that would impact the performance. Any help is much appreciated.

By the way I´m testing this from wihtin the editor with vr preview mode.