I had the same problem with constant FPS dropping, freezing/crashing.
Tried every fix that people on reddit recommended. Nothing worked.
Then someone told me to try the process lasso fix, and it worked! Runs amazing now
i7-2600, 24gb ram, gtx 1070, SSD
Forces the game to load the scenery in that direction, almost certainly causing those stutters - once loaded you are good. Try increasing the sim rate in flight - kills the frame rate for a good minute or so after you bring the sim rate back to normal while the scenery loading catches up if youāve travelled a reasonable distance at the faster sim rate.
Its when that Main Thread peaking you get those stutters. At least for me. So 1 thread out of 12 is peaking and the overall CPU usage is about 40%. It must be optimized.
The simulator is impressive, but like everything in the beginning, it has its drawbacks: I probably have a high pc rank among users (not counting the new 3000 graphics cards from nvidia):
With these specifications I canāt get stability at 60 fps, it doesnāt matter if itās in low / medium / high / ultra quality. It suffers much more in the largest aircraft (a320, 747, 787 ā¦) that do not even exceed 40 fps
I trust that the Microsoft development team of Asobo will optimize in these months, because otherwise it will be for only high teams that not everyone will be able to access to play properly.
Please, they have made a magnificent simulator, impressive on a graphic level, but we want more fps!, Many more fps! the most optimized to what you can achieve. We trust you!
For my part, for now what I ask of you: FPS, FPS, FPS. After everything else comes!
Just seen OAās latest video, thereās a roadmap for the next fixes, as can be seen here: https://www.flightsimulator.com/september-3rd-2020-development-update/
Weāre not unheard, thanks MS/ASXGS for listening and the hard work to help us get a smooth experience! 
The update might drop on Sep 24th as per the roadmap.
Meanwhile, I actually could make it a noticable bit better with the Process Lasso thing*, but it didnāt solve the issue completely - but I can say itās actually simmable to some extent now. With that fix on the horizon, I see a bright future in my Rift 
*this one, actually had the biggest impact of all the things I tried:
Also, I do very much appreciate the improved loading times as they are massive at the moment. Takes me like 4-6 minutes to get into the menu alone and loading up the actual sim takes even longer from there on.
Hi Guys,
Please also have a look here and support so development team have a look and help to all of us by considering all systems of all kinds across the glob, as all of us deserve enjoyment and SIM this beautiful creation! And be heard and respected by developers as we pay this docent amount and we want be able to enjoy!
I have spent 3k plus for my system and not even able to get decent performance out of this SIM even tweaking SIM not enough tas this SIM limiting CPU and GPU. See my post and also support
High End PC low GPU usage and CPU
Thank you all for your time and have an awesome weekend guys!
Hi Coin,
Same buddy! I feel your pain haha,
I got i9 9900k OCed @5.3Ghz on all cores this CPU is silicon lottery and wasnāt cheap
not to mention 32Gb ram and RTX2080Super Trio X from MSI just this GPU cost me 849Ā£, and not to mention my hard drives NVME m.2 Sams Evo 500Gb and NVME M.2 WD Black 500Gb and all my system cost me near 4k with cooling and on top of this all I pay for SIM that I canāt even run properly.
As all pointing on bad optimization within SIM and with Airliners in the cockpit I get GPU ut around 45% to 50% on the exterior I get a constant GPU ut 79% ~ 98% that gives me better FPS but not much regardless of settings Ultra, Low, Med, High is just donāt seams have much of a difference. Even with tweaks from the community and all hand optimizations max in A320 you get top 46FPS min 31 depends on airports that also are not well optimized such as french airport Charles de Gaulle that gives a terrible impact on FPS, I mean just like you said well done immersive SIM but lack of optimization, looking into other SIM titles that are super well optimized and devs have not sacrificed the visuals or quality is all about coding and tech is used to achieve the balance!
Well, hopefully, we will keep the immersive graphics and visuals and get a nice optimized SIM that allow all of the users regardless of their systems to achieve max performance and balance regarding FPS!
Thanks for reading and hope all we together will make the developers look into this closer and get their hands to work to get it done right! As not even RTX 3000 series will make much of difference when is all down to SIM issues.
Every airplane with Garmin G1000 glass cockpits perform very bad, even on my Ryzen 5 3600 CPU with 32gb DDR4 3200 ram and AMD RX 5600XT new bios PC.
All is installed on a 1TB NVME samsung ssd, Windows 10 version 2004.
That āfixā for G1000 doesnāt do anything for meā¦
The other aircraft with analog dials make the sim work great, 50+ Fps on High settingsā¦
its funny when they are more focused on stupid stuffs rather than fixing the CTDās , 850+ reports of CTDās and yet its not even on the patch list. WOW
CTDs can be a symptom of something else such as overheating. There is nothing Asobo can do to fix this other than limiting your GPU/CPU usage, and then no-one would be happy.
Neither my GPU or my CPU got even remotely hot with any of the other applications or games I used. But MSFS gets them both right up to 100% utilisation at different times which results in max temps.
There are many reports in this forum of CTDs being resolved when cooling was addressed. Either by hardware fixes such as optimising case airflow, upgrading cooling or even replacing CPU thermal paste for a better connection between CPU and cooler. Alternately some use a software solution to limit frame rates (ie Nvidia settings), which in turn reduces CPU and GPU utilisation and therefore temperatures.
I took some action to optimise case airflow to keep my GPU temps under control (result -9c GPU temp, cost $0) and CPU liquid cooling (result -20c CPU temp, cost AUD $99).
So I think Asobo may not prioritise CTDs as the majority are not experiencing them, and those who did, but fixed them, did so by addressing PC overheating. They will only fix problems most people experience that they can replicate, like USB disconnections addressed in the 1st patch.
Majority are not experiencing it? yeah sure Crash to desktop without error message
Coming back to usage part.
My GPU usage is 70-80% around 60-70c
CPU usage is 30-40% 30-40c
I play games which pushes the usage to 100% but never had any crash or bluescreen. There is no such game where i have to do 1000 fixes and optimizations. There is something wrong in coding even 2080TI having CTDās. ASOBO just dont care about us.
My point was not that all CTDs are caused by heat, but just that enough are the result of heat to warrant investigation along that path first.
The link you provided even contains posts that support this.
Also not all heat is directly reported by your PC, so CPU and GPU temps are not the only indication of a heat problem. Overheating memory and PSUs can cause similar problems.
For instance my original CPU heat sink was just millimetres from my memory. When the CPU cranked up under load it was adding significant heat to my memory. Just bad motherboard design. Relatively cheap water cooling removed that as a possible problem source.
Also my power supply intake had restricted air flow as the filter had started to become clogged. Being near the floor it encounters this problem long before any other component. A quick clean fixed this as a possible source of any problems.
I found my CTD was caused by a Win 10 performance tweak I had used. My own fault as I should have undone it when it didnāt give the desired result, but had forgotten. Problem solving is all about picking away at all the possible causes, until you fix the problem. I am sorry to hear that this hasnāt given the result you want so far. If it was just as simple as Asoboās coding, then the over 1 million owners would all be screaming loudly, and theyāre not.
I genuinely hope that any performance optimisations Asobo apply in the future will tip the balance enough in your favour for the simulator to function.
Hi Billngal,
Well in my case as above advised by me GPU usage 45/55% in cockpit and temps are 40/49c and gpu is pushed quite well is an RTX 2080s trio and my CPU is i9 9900k 5.3GHz oc all cores and EK rad push pull and block and I got all case vented by EKWB evo 120 fans 2200rpm and sweet case airflow as my case is fully glass and has vent on sides and all around to get fresh and hot air pushed out, my cpu usage in cockpit is around 30%40% not all cores and temps are 36-45c so I did never experienced any high temps in this SIM, more on exterior view GPU usage is around 78-98% and temps never ever seen above 61c steady, not to mention hangar view gpu load consistently 98/99% and temps are same 61~62
So what you talking about, as clearly SIM has bad optimisation! I do not experience any CDT or whatever you talking about with overheating I never had that since install of FS2020, One thing bugs me off is this bad optimisation with airliners and in general that not only my system that worth more than 3k not able to run steady FPS or obtain good performance, is all types of systems. We need solution and this must be done now as priority.
And remember my words if this is not sorted people will start to abandon the SIM just because FS team prefer other things first such as ATC and la la laā¦ is more important ATC than optimisation and stability for their users that actually paying money for SIM not to mention users that spent extensive amount on system to be able to run this beautiful SIM, Iām not saying to get stability by nerfing textures and quality but yes revising the coding and programming the scripts and maybe finally getting in to DX12 ?? We awaited so long to get half baked cake that is like mhaa in terms of optimisation and performance.
Really
I appreciate your frustration, but donāt take it out on people like me. You might just stop the one person who has the solution from posting.
I donāt claim to be anything special, I just report on what worked for me in the hope that others may benefit. All my fine tuning and problem solving with MSFS has come from the help of others who offered suggestions in the forum. Most didnāt work as you can see here, but that is no reflection on the people who made the suggestion.
Lol your last statement there stop using FSā¦ well as I said my system is able to run it only prob I have With this sim is this bad optimisation performance when comes to cockpits of airliners. Now Iām just standing by all people that having problems and all kind and my thing I suggest to FS team look in to this as I do not want this SIM die like FSX that just to me is a big failure and I donāt want Asobo team step in same pile of s*** like other did in past and keep this beautiful SIM a live with all players in it! As at the moment this SIM has a bright future a head if things set in right priority such as optimisation performance review. Perhaps on the side of coding and as said perhaps adding DX12 ?? Leaving this to them to decide!
Iām curious to know if this fix helps with any of your performance issues, especially on CPU bottlenecking, as some of the glass cockpit issues are tied to excessive polling of data with large amounts of JS processing.
This fix helps to cap various instruments to a fixed update rate, no matter what screen refresh rate you operate, giving between 15-19 FPS extra as well as no degradation in instrument performance (the fix is targeted towards individual instruments for better overall performance):
I donāt know but I think we wouldnāt expect great miracles, like 15-20 fps improvements after patch, more likely around 4-5 fps. As I say, their main goal are propably 3xxx cards.
Bro, this post made my day! Thereās hope for potato PC owners like meš I thought the only hope for me to run FS2020 and not get mad at stutters will be to wait for the next gen Ryzen to be released, but maybe the Sept patch will improve this. Great news!
I looked through the messages in this thread and could not find this mentioned, so please forgive me if I missed something.
Like many users on Reddit I have found that my stuttering issue has to do with process priorities between active and background processes in Windows 10. E.g. if I open the start menu while in-game, sending the active MSFS window to the background, the horrible slide show is immediately replaced by generally acceptable performance at 30-40 FPS. The problem is you canāt run the game as a background process all the time. Some people have tried playing with the priority settings, etc., but it only helps so much. I hope that the developers fix this bug.
I have submitted a ZenDesk ticket of course.
Donāt fret 
I am using an old i7-2600K and 1070 GPU with the latest Nvidia hot-fix driver 452.22 which has no published fixes for MSFS 2020 and my performance has rocketed for some reason. Possibly because I have refreshed a driver install. My cloud edges have improved significantly for some reason, especially close up. Probably because I have chosen to enable āenhanceā anti aliasing in the Nvidia Control Panel and Anti Aliasing Transparency X2. Could the later improve the appearance of cloud edges? I am no expert in these matters.
If it works for me then it will probably work for you too on your higher specification machines! I have also enabled Variable Refresh Rate in the Windows 10 graphics settings because my Freesync monitor does not support NV Gsync. Hang in there! Charles
