This site is being deprecated.
Please see the official X‑Plane Support page for help.
I have a server grade computer which has a windows experience index of 7.9 for all except processor, 7.6 for processor, 16GB Xeon 8 core, SSDs, Nvdia Geoforce GTX Titan with 6GB, running windows 7. It ran fine before latest 11.11 update, could barely scratch the surface of processor or graphics card performance with highest rendering options. It is now saying ,slow frame rate, only about 15-20 frames max even on runway. If I run task manager is shows it's consistently only using max about 20% CPU, 79% idle (everything else only manages 1%, gtn750 uses 1%) but consistently slow frame rate. I suspect your new update doesn't use all cores or doesn't use graphics card optimally or something.
Thanks again for tip but changing performance settings
sadly didn't work for me either - screenshots (need to scroll across) with task man showing balanced and high performance - still hovering around 13fps sitting on runway.
Also screenshot of graphics sliders way down.
And finally one showing windows specs performance index 7.9 on a sclae of 1 to 7.9 for graphics!
This site is no longer being actively maintained.