I recall somebody on Avsim had previously labelled it "Jcommitus", a disease in which the afflicted is compelled to change their simulation of choice several times per year!

And the bad news is that it's not an accute episode, but rather a crhronic disease, with accute episodes

Well,

 

the only add-on aircraft presently installed on my P3dv2 is the CARENADO B1900d.

 

I have set OPTIMIZE_PARTS=1, but I can notice that, particularly when not in full screen mode, the drop in fps with this particular aircraft in P3Dv2 is very noticeable, whereas in FSX:SE and FSX Gold it was rather smooth.

 

Weather depiction, even using the default textures for the skies, which I always do, but with ASN feeding the meteo certainly looks better in P3Dv2 - very realistic indeed! - but it comes with some additional hit on FPS.

 

I intend to upgrade to an ASUS GTX 960 TURBO OC 4GB graphics board, and expect to get something better when dense cloud coverage is being displayed, even having ASN max cloud layers limited to 3.

 

Overall, very satisfied with my jump to P3dv2

I have finally made the big switch this week and I am dumbfounded as to what is achievable. I tried P3D at 1.4 but was really disappointed with performance. That however seems to of changed - 60FPS rock solid whilst flying the NGX with almost all the shadow stuff turned on is absolutely incredible. The cursor FPS problem is also gone for me which means performance is far superior with better visuals, it is a complete no brainer to change now if you have the hardware.