I’ve had another go at my settings after resetting back to low and gradually building them back up. I’d been having difficulty running the Normandy and Channel maps without severe stuttering, though Georgia and Persian Gulf ran fine.
It seems DCS performance can fluctuate from update to update when it comes to VR.
At the moment I have found that the addition Force DX11 mode in Windows MR for Steam has made a big difference to performance and has made each of the maps run above 40FPS, including Normandy and the Channel Map. Georgia has run over 50FPS.
I’ve not changed any of the Windows MR for Steam settings other than Force DX11 Mode, which is now set to on.