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New PC bad perfomance

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Hi. i have a new pc for p3dv4 but is running bad fps


i7 8700 non K

Aorus gtx 1080ti 11GB



Asus Prime H370M plus


game settings: Medium-High


Miami airport, REX 4 direct, REX4 HD airport, Envtex, all ORBX global/general addons, freeMESH. Ultimate traffic live Flight1.


Miami + 787-8QW and im running at 20fps/prod... with default aicraft i can get 30fps/prod...

In medium-high  altitude i can get more than 50/60 fps /prod


Im doing something wrong ? i delete shaders + prepar3d.cfg without better results... i tried affinityMask and other settings and nothing...


ty for your time... need rly help here!

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19 minutes ago, garyeikoow said:

Miami airport, REX 4 direct, REX4 HD airport, Envtex, all ORBX global/general addons, freeMESH. Ultimate traffic live Flight1.

That is a lot of stuff going there..

What are you AI traffic settings? if this is too high you will suffer from some FPS drops.

Also are you using SSAAx2 or something like that?


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Post your display, world and lightning settings, helps to identify your problem.

If your HT is off you don't need an AM setting, if its on i would try AM=4052

Edited by JoeFackel

System: i9 9900k@4.9 - 32 GB RAM - Aorus 1080ti --- Sim/Addons: P3D v5 with tons of Addons and 3rd Party Airports

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Before you start messing about the P3D.cfg (which is generally unnecessary), ensure you disable FXAA in the P3D settings as it's a BIG framerate killer. As others have said lots of AI traffic could kill your frames, see if lower it makes much difference.

Feel free to copy my settings, I have a lower spec system than you so these should work fine: baZD49.jpg 

But don't expect to get mega framerates, 20 fps is usable and 30 fps is smooth. P3D is a very demanding piece of software which is built to anticipate the hardware of tomorrow.

Edited by ckyliu

ckyliu, proud supporter of ViaIntercity.com. Find my spec and settings in "About me" on my profile.


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A 3.2 GHz i7-8700 (non-K) CPU is a hard limitation...that's about 36% slower than an overclocked K variant running at 5 GHz.  Not much you can do to improve on that short of replacing the mobo/CPU.

20fps in a complex add-on at a complex airport is reasonable for a CPU running in the low 3 GHz range.  Management of frame rate and/or smoothness is going to be through pulling sliders on CPU-intensive settings back (e.g. AI traffic, autogen, etc) to trade eye candy for some performance.


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Bob is exactly right on the limitations of the 8700 (non-K), and the results you're seeing are typical at Miami with that speed cpu.

I might add that if you're running LatinVFR Miami, I've found it is not the best add-on airport for fps.

Another issue at Miami, default or add-on airport, could be the two Special Effects sliders.  Turning those sliders all the way down seems to help for me.  I fly out of KMIA probably more than any other airport in the sim and that is what I've found.  I'm overclocked to 5.0 ghz with a 1080ti and I still have a slowdown with heavy weather into KMIA.  Perhaps a 2080 would help me in that regard.

Finally, as was said, turn your Autogen buildings down a lot (I'd suggest no higher than normal), and vegetation a little (normal or one tick above, as you see fit).  And for Ultimate Traffic Live I'd suggest no higher than 60% on airliners, 30% GA, but you can of course play around with those settings.

It is hard to guess as Joe says, you did not post up your resolution, settings, etc.


i7-8700k @ 5.0 ghz, 32 GB G.Skill TridentZ, 1080Ti, 32" BenQ, 4K res

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You will have to be careful with your settings with a processor running at that speed. Even though P3D does let the Graphics card do more work. High clock speed it still king when it comes to performance.

I would say that your performance is about what you would expect running at 3.2Ghz



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