I'm running P3D V4.5 and up to a couple of days ago was running the NGXu, ASP4, Orbx and add-on airports reasonably comfortably at 30 fps just about everywhere, limited by the Nvidia Control Panel.

P3D is now loading and starting a scenario but is scraping along at 2 FPS - really, 2 FPS.

I'm reasonably sure what I've done is to stupidly start P3D while I had the Lorby Addon Manager running and probably worse, while I had the Lorby Export Library for Export Tool active.  I think that brings together sceneries added by both the "old" .cfg method and the "new" xml method (I was running MakeRunways at the time) and I'm guessing that's corrupted some index or other in P3D.  Certainly it's NOT adding sceneries I know are installed but are not showing in the scenery list when it starts.

I've uninstalled and reinstalled P3D Client, Content and Scenery, uninstalled and reinstalled SODE and for the time being, uninstalled GSX.  I've also uninstalled and reinstalled my video card with the latest driver.   I've tried to revert to an older P3D scenery,cfg but none of this has worked. 

Are there P3D files I can safely delete or disable to force a complete rebuild or am I going to uninstall everything and start again?

 

Have you tried going into the P3D folder and running the little 'Delete Generated Files' thing in there? all you do is double click on it and it usually sorts the issue you are having out.

No, didn't know about that one, I'll try, what could possibly go wrong from 2 FPS!

 

No but thanks anyway