So the goal is to eliminate wild fps fluctuations.
The latest nvidia driver has a frame limit setting. If your screen refresh is 60hz I would recommend setting in the nvidia control panel to a limit of 30 fps. Then in P3D settings, turn vsync on, but set frame rate to unlimited. I would not use P3D's frame limiter (other than to set it to "unlimited"), as that gives you the lower results you saw. Verify that your sim is topping out at 30 fps (and a smooth stutter-free 30 fps it should be) using SHIFT-Z to display the fps counter.
A word about SSAA...I would not run SSAA at night. At present SSAA just doesn't play well with HDR. Maybe if you have an RTX2080ti that is not an issue, but it's definitely still an issue on my 1080ti, and I'm sure on your GTX1070 as well.
After a reinstall of a320 and a330 professional. i had 2 entries in the aircraft.cfg for Dragonair a330.
Can someone tell me why this would have happened.
No need to reply to this message.Someone else had this issue and was advised just to remove any duplicate entries.All good.