Zendesk have just replied to my report on this bug. Their email contains only a standard list of advice: don’t overclock, empty the community folder etc. No sign of a recognition that this is a new bug following either SU5 or WU6 and which only affects performance when Photogrammetry is switched on. I think your optimism is going to be tested, SplitCurve!
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I had the same problem, but it fixed itself after I reinstalled Windows, which I did for other reasons, so for me there was apparently something wrong with my Windows, I first tried to install the game, but it did not help.
Hello!
I have an issue that i just cant solve since 2 - 3 months ago and consists in a tiny but not nice lag that happens exactly when the aircraft touchdown in the runway/grass. It doesnt matter the airplane, it can be the cessna 152, the FBW A320, the TBM 930, etc… but the lag always is there ALWAYS when the wheels touch the runway/grass.
I tied everything to fix.
Turning off photogrammetry it didnt help.
Flying without AI traffic didnt help.
Re-install the sim in a SSD disk didnt help.
Reducing the graphics settings didnt help.
Turn on cache mode didnt help.
Turn off cache mode didnt help.
Flying without ATC didnt help.
Delete all the content in my community folder didnt help.
The funny thing is that the lag only happens the first landing. If I take-off again and land again the touchdown lag dissapear until I close the sim and open it again making againa first flight with a touchdown lag.
Someone here is having the same touchdown lag issue?? is it the same as you have or its only me having such problem??
If someone knows how to fix it I will be soooooo thankful!! 
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I have a system with 5900X, 32 GB 3600 MHz RAM, 3080ti, 1Gbps download speed, storing MFS on my 970 EVO Plus and using Ultra settings.
After takeoff, my FPS drops significantly from around 55 to 3 fps. CPU and GPU utilizations drop dramatically to around 10-15% as well. Could anyone help? Many thanks
You’re not the only one, DrInvisible5137.
I have exactly the same problem.
See also a post from SplitCurve49315 above (18 days ago).
In the short term, you’ll find the problem disappears if you turn Photogrammetry off in General Settings under Data.
In the longer term, however, that’s a high price to pay for basic stability in the sim.
The issue has not been solved by Sim Update 6.
It has been reported to Zendesk, but unfortunately has not formally been logged as a bug as far as I know.
Don’t be misled if well-meaning fellow-simmers tell you the problem lies with your settings or your hardware. It doesn’t. It’s most definitely a bug.
Let us know if you come across any further information.
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I get this with PG on and flying low as well not just airports. I hope it gets logged in bugs soon.
This is definitely a bug. Same here. Exactly as described by many and not solved after SU6
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yup, my test has always been a traditionally tough area like london and new your. All the SUs up to 5 were fine, but there is a noticeable lag after this SU (6). I have the ORBX and SamScene add-ons. I have not seen any of them posting any updates. Hope someone in charge does something.
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I’m experiencing something pretty similar in NYC when taking off and landing in runway 13L, having Sam Scene’s NYC Times
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We are talking about a bug. Your issue is related to general performance. Totally unrelated to this topic.
No, mate. I bet it’s about the same bloody bug, the only different thing is that it’s also happening elsewhere.
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Yes this happens everywhere, small airports, no airports, the only condition is close to the ground or on the ground. So when you are on the ground or below 300 feet with photogrammetry ON ANYWHERE even in areas without any photogrammetry, you get massive stutters below 10 fps, but when you turn the photogrammetry OFF even in heavy areas, add-on airports, New York, it is silky smooth on the ground and in the air?
Once I get in the air even over Manhattan, FPS go up even to 50 fps in mostly high and some ultra settings. But back in the ground, heavy stutters and FPS in low 20´s (the worst scenario landing and taking off from rwy 13L); even in Magsoft Studios’ MMJC Jorge Jimenez Cantu which is a really light GA airstrip near Mexico City, the sim struggles after WU6 and SU6. BTW, turning off photogrammetry doesn’t make any noticeable difference in my case. I’ve an Eluktronics Prometheus XVII with i7 10875h processor, RTX 3070 GPU running at 140w, 40 GB of Ram working at 3200 and a couple of NvM2e SSD’s which comprise a total of 3 TB.
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So i guess your complain is about general performance that always has been worse on the ground but not a photogrammetry- related bug. Without photogrammetry i get around 30 to 40 fps on the ground and over 60 in the air. That difference has always been there but with the performance uplift after SU5 the difference is not as annoying on top end rigs (3080 or 3080ti with latest CPU).
People who mention phptpgrammetry on/off bug can have less than 10fps on the ground even in the middle of nowhere and after turning off photpgrammetry immediately get over 60fps.
Just checked the latest update (today) of Known Issues. The problem of unplayable fps drops on take off and landing when Photogrammetry is switched ON does not even merit a mention, despite the fact it has
multiple votes on this forum.
Add my name to the list with Photogrammetry ON it is unplayable.
A clean reinstall of Windows solve the problem for me and several others, I know it is a pain, but it really work.
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Same problem here with both PG on or off, no matter the plane, size of airport or weather. Really nasty.
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Started for me the other night. Changed absolutely nothing on my end and this is the first time I have ever had anything like this with any update.
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This has now started for me over the past two days. Have never had FPS drops before the last two evenings, but now on every approach I get massive drops/stutters.
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