Hello forum,

I have a GTX 1070 non-Ti, 16GB of RAM, and an i7 7700K processor, and my system just does not do Dynamic Lighting in P3D V4.5. I did a fresh install today and all I have is FTX Global and the DA CRJ 700/900. I've experienced this is all V4 versions but whenever I enable dynamic lighting in the settings, my entire computers' performance goes down the drain. The sim will go from a consistent and smooth 40+ FPS down to a laggy and delayed 5-10FPS. In Task Manager my GPU % goes from 50-60% up to 100%, and the YouTube video I'm watching on my second monitor also studders and doesn't play properly. 

I know the 1070 is dated now but it should be powerful enough to handle this, I have not seen anyone else with this issue. I know nothing about hardware or software, but my Display Settings in P3D are as follows:

FXAA is on.

AA is 8xSSAA (when I use 8xMSAA this is not an issue, lights and performance are proper but the sim looks pixelated)

Texture Filtering is Anisotropic 16x 

Texture Resolution is Hiigh - 2048x2048

Any insight or advice would be greatly appreciated,

Thank you. 

Hi Dmitri,

I used to have a GTX 1080 and the dynamic lightning handling was already not that good. The impact on frames was noticeable.

The fact that you are using 8XSSAA and FXAA is probably the reason why you see such a terrible framerate.

I suggest you remove FXAA as it is a huge FPS drain while not bringing so much improvement.

Also what is your display resolution ?

I will keep it off of FXAA. Do you think something like a RTX 2080 would handle this better?

My display resolution is   NVIDIA GeForce GTX 1070.0.1  Resolution: 1920x1080x32.