Latency issues with GPU passthrough

First off a huge thank you to Space Invader One's excellent video guides, His recent video on downgrading AMI BIOS's is the only reason I am able to use GPU passthrough in the first place. I am having issues with stuttering in 3D applications, most notably in VR. Here's the kicker, it's completely random whether I will have a butter smooth VR experience or a laggy hitchy mess. Every day for the last week and a half I think I have it solved and the lag comes back. Last night I thou

Thanks for the reply! Sadly I don't think I'm going to go any further for now. I spent the last hour trying various settings combinations and nothing seems to help. I had already tried setting the CPU governor in tips and tweaks. I tried setting the emulator pin to 2,3 (after removing those cores from the VM) and when that didn't help I tried only the last 8 threads to the VM to try to isolate the CCX which was something I had considered and tested already. Still major stutterin