GTX970
i7-3770K
6.7
I haven't noticed such thing here. My main system was in full "web dev" mode (all browsers loaded, source editor syncing, web server in the background) when I ran the test and all was top notch.This test is very susceptible to any background tasks taking CPU or GPU power. When I ran it with Firefox open it gave me mere 6.9 and still produced over 9000 frames.
I haven't noticed such thing here. My main system was in full "web dev" mode (all browsers loaded, source editor syncing, web server in the background) when I ran the test and all was top notch.
Check with Latency Monitor and see what might be the cause.
Because of the way how Rift processes orientation mapping, single-threaded performance is important for the platform and that's why Oculus recommends up-to-date CPU architecture with higher IPC, together with speedy USB3.0 link. HTC Vive is probably more suitable for your system, but it's pricier, if upgrading the PC is out of option.