Don’t want to create a bucket of worms, but I installed W11 today and my sense is I picked up about 5 fps running a 1660ti with an I7-10700. Otherwise, runs nice and smooth.
Getting mid 40’s to 50 fps on medium/high setting and 100 render scale for 3440x1440. 100 terrain LOD and 90 object detail.
Are you comparing it to a fresh clean W10 install?
…and comparing 2 absolutely identical scenarios under the exact same conditions?
How did you get windows 11 with the 10700? I was told that I do not qualify because of my hardware.
Try turn on TPM in your BIOS, that fixed my problem
If available as a software option. If not you’ll need to source a TPM hardware module.
That is not a good idea!
There are much easier ways
Name one that isn’t a firmware update for your motherboard.
Sounds pretty sketchy to me. I’ll stick to the MS approved route.
Which noone here suggested.
Of course, my bad
Then I think you have misunderstood the posts above. Most people that find they wouldn’t be able to install Win11, on a recent system, is the lack of a TPM module. TPM 1.2 is enough, but for full support you need TPM 2.
There are two methods:
I did option 2. No one here is trying to disabled TPM. In fact your method seems to attempt to subvert it by using a Win 10 disk to install the Win11 image. And you posted this on an MS forum as well.
Makes sense 
I can understand that, but firmware updates these days are pretty robust. You may even find your motherboard doesn’t support it, and you have to use a hardware module. They are doddle to fit, cannot be fitted the wrong way around, and easy to set up. It’s an on/off option in the BIOS.
True but for 22 bucks just to install dev win11
You’d be lucky to get one for that price. All the stores got looted, likely by the same **** that bought all the GPU’s. Typically they are now four times the price, or more! The website I got mine from on Thursday, delivered Friday, had no stock by Saturday. And oddly, all these entries appeared on Ebay the next day. 
I’d be interested to know how you get on with that. and also MSFS performance.
Good luck!
Hold the phone - before running to get a TPM hardware module. Most Intel motherboards in the last four or five years already include Intel PTT and TPM 2.0 capability. It’s just generally set default as disabled in most motherboards. Before buying or doing anything with hardware, go into your BIOS [not as scary as you might think] and enable Intell PTT ) usually under “security” and make sure your system is capable of “secure boot.” If your boot-up runs from a MBR (Master Boot Record), you’ll have to do a simple conversion from MBR to GPT to enable UEFI operation required by Windows 11. W10 already includes a routine called “mbr2gpt” which can convert a boot drive from MBR to GPT/UEFI without any loss of data.
THE POINT IS: W11 won’t be released generally for months [if not sometime in 2022] so there’s plenty of time to look into getting the system you already have operational for W11 without buying anything or even having to flash a BIOS. Your current BIOS more than likely is ready to have a couple choices enabled and “Bob’s your uncle!”. Youtube will be littered with a million how-to videos on the simple changes required to get ready for W11.
Or in the case of my motherboard, hardware only. So I bought a TPM module ASAP before all the scalpers jumped on those too.