You can minimise the scenery editor by clicking on the small triangle in the top corner, and then move it out of the way. As per the temporary fix posted, I’ve found that I can close the project window down without saving it, and just keep the Scenery Editor window open.
keep saying o paid , o paid!!! everybody paid not only you. This will not bring your money back and will not make your frame rate better. Report to zendesk as we all do and cooperate constructively if this is possible otherwise, if you can’t play like everyone else we’re sorry, but this complaining serves no purpose except to fuel general discontent.
Hi pilots.
I struggle with same issues. And it became worst recently.
Limited by Mainthread:
My biggest bottleneck is the CPU. Even its an Intel i7-10875H (8 cores/16 threads) running a 3.5 GHz most of the time it’s the limiting factor. Thread utilization is bad and overall usage is just (35-45%).
Two things mainly have an impact on it: Terrain level of detail and the refresh rate of glass cockpit.
Before I had an i7 with 6 cores / 12 threads. Utilization was equally bad but it ran at 4.0GHz most of the time so at the end it was faster.
Refresh Rate of Glass Cockpit:
Changing the refresh rate from “High” to “Medium” gives me another 5 FPS. Unfortunately this makes the displays very jerky and destroys the whole experience. Not using the cockpit perspective performs way better.
I can only speculate. But either some things of the glass cockpit are drawn by the CPU and uploaded all the time or the renderer for lines/texts/objects is not the best.
I hope they optimize it since most of the planes use displays.
Stuttering:
Frequent stutters are still a huge issue for me as well. It always occurs when the ATC is talking (using the speech via the cloud). Or when scenery items are loaded.
Rotating the camera view also causes stuttering. Mainly when flying at photogrammetry areas.
Then GPU memory usage changes rapidly too. It seems whole content of GPU has to be replaced based on viewpoint.
With one of the latest updates I now regularly experience long durations of stuttering (15-30 sec). Then suddenly performance drops to 10-15 FPS for a long period and recovers afterwards. It can be reproduced.
World Map:
With one of the latest updates the work map became very slow. It is limited by “Manipulators”.
I have to zoom in once to get it back to normal.
General Discontent is the entire purpose of this discussion topic…it does not purport to offer a fix
I am wondering why they don’t just roll it back . That would make people happy and they ( Asobo ) can take vacation as long as they want . I have no problem if it take them the whole year to release an update but it’s definitely a problem if the update wreck the sim for a month .
There is a setting for the refresh rate of glass instruments. Is yours set to high?
Count me in as someone that thinks they should roll back. It’s basically unflyable in the current state.
I have a RTX3090 + 10900k and I had 1 solid fps during 5mn, one fps… I am pausing till it is fixed, I am tired… Tried all described “workarounds” and thanks everyone by the way in this quest of minimizing the impact of this regression. let’s see what next week will be made of ! Enjoy your sunday/monday 
is there any more update on resolving this? I have gone from 45-60fps to as low as 10 fps. Hurts my head and eyes playing right now..
No sir, there has not.
Nope. Not a word from them other than “we’re aware” and it will be fixed “as soon as possible”. Neither of those things bring a lot of comfort. Roll it back, Asobo.
hahahahahahahahha made my day 
Agree with many, if the fix will take long simply roll it back temporarily
Yeah , so they can take time to investigate the issue thoroughly as long as it takes .
The airplanes I fly doesn’t have glass instruments… But this bug effects me too.
This am for KHOU to KBOI was terrible for most of Texas - I had one stretch where the 2-3 FPS last a good 5 mins. Once I got to about Colorado its smoothed out to its generally not so good most of the rest of the way…then on final in Boise again right around the runway awful until just a little before the threshold. I hadnt done much flying in the US lately and it appears to be worse there then anywhere else I have seen. Waiting to see if there is anymore communication this week on this - hoping so but I am not holding my breath. Something is wrong if its still “Investigating” - by now Asobo should have some idea what the issue is. The more appropriate response at this time would be “We know what it is but its going to take time to fix”
Just had 3 great days of perfectly smooth flying. Today it’s unplayable. Slideshows everywhere after a couple of minutes of flying. I have touched absolutely nothing.
That is exactly right. Each update has introduced problems that have mostly been ignored and now they have compounded into a total mess. If I was MS, some heads would roll, figuratively speaking, so as not to upset the gentle types here.
exactly! it’s not the hardware it’s the software, i can run the xplane 11 with several third-party addons in the background at an average of 40 stable and fluid fps. I can run any other game in ultra, some I can even raise the resolution to 2k. I don’t understand the people on this forum, hundreds of posts reporting the same problem and some people insist that the problem is my computer. As I said the fs2020 inherited problems from the fsx and fs2004, the lack of CPU management is what causes the bottleneck in this simulator, always a single nucleus is stressed to the maximum and the others are as auxiliaries, which is why even more setups potent has difficulties in extracting frames from larger frames, even if it is no longer directx 9 like fsx and has support for dx11 which can handle 4 cores well, the game does not seem to be right wue there are more colors to divide the load between each other.
I can’t be bothered to read through 967 
posts so this might have been mentioned before but for me performance is now is back before the UK update and is great.
What fixed performance for me was following this video which I had done before but the last patch had reset the change. I must admit though I only usualy fly in rural areas with GA planes.
Let me know if you try this how you get on. 
Microsoft Flight Simulator | Stuttering From Last Update | Fixed!!!
Ah just noticed @BrawnierHook18 has posted earlier, sorry about that.