Hello, Exactly the same problem for me. I play in VR, I have a powerful configuration, during the game I never see the CPU or the memory saturate. The missions often start well, everything is fluid, the ideal DCS. Then during the mission, without anyone knowing why, things go wrong. The game slowed down (no more or less objects), becomes frankly unpleasant. There often I put the VR headset down, I wait and sometimes it becomes playable again. I'm sick of it, it's frustrating, can't wait for this simulator to evolve. Because even with an FS2020 running like hell on my PC in VR, DCS remains the best simulator for me and I'm very attached to it.