Lightroom classic not compatible with windows 11?

I can't edit my question, so here are answers to questions: 

I saw it is Lightroom 6 instead of classic.. I thought it was the same, but it turns out to be different. 

When I work in the library of lightroom and go from one photo to the other, after a couple of photo's lightroom freezes and one or two seconds later I can continue. It doesn't matter if they have 1:1 previews or not. The same happens when I add keywords to a photo. I can make one or two words at speed, then lightroom freezes and one or two seconds later I can continue to type.  

When I go to another application, for instance outlook or chrome, and I want to return to lightroom (the program is open) it takes a second or 10 before lightroom appears and most of the times it doesn't respond immediately. 

The last couple of days lightroom isn't responding most of the time at all and I have to wait minutes before I can actually do something in lightroom if I can do something. So the problem seem to becomes worse.

I have still installed lightroom on my old laptop, but I thought I read that it is possible to have this version of lightroom running on 2 computers. On my old laptop lightroom still works just fine. 

I havn't been developping pictures the last couple of weeks, just been busy with the library, so I don't know if developping gives extra problems. 

Laptop specs: 

Intel core i7

Nvidia geforce rtx 

16 gb ram

I have my photo's on a synology nas, but that hasn't ever been a problem on my old laptop. 

Systeminfo (it's in dutch):

Also, Windows 11 as say vs 10 or earlier. Probably many things to turn off, to tweek, etc. You can use Google to search for tips on that. Here is one example with a few that can relate to creative apps like LrC.

https://www.computerworld.com/article/3687056/how-to-speed-up-windows-11.html

Mind you, on a laptop, the power setting tweak may or may not be available depending on CPU (some laptops use low voltage CPU, can be an issue)

here is a video with much of the same, mind you from a gamer point of view, but many apply to creative (even the game mode bit)

https://www.youtube.com/watch?v=-7cTxZ4mXos

You have not shared that system Info yet, so no knowledge on what GPU. Both NVIDIA and AMD have tweeks for performance, at least NVIDIA does. SOme immediately get applied (for NVIDIA in the GeForce Experience, that tweak settings for specific apps) some in deeper in mfg supplied GPU control settings (a bit techie that bit)

You have not mentioned what fails, what is slow, etc. so a bit hard to diagnose. But some LrC settings that can slow things down. These have nothing to do with OS version, but on a new computer, perhaps they got overlooked.

• Face Detection on, consider pausing it, even if all the faces have been detected.
• Address Lookup running, same as Face Detection, eats up resources, pause it
• Any Sync to the Cloud, Not actually needed right now Pause.

One thing that can get in the way, and a new Windows 11 is going to want to do this. A Microsoft Account, as in logging into that computer using a Microsoft Account instead of a local account. This invokes a very intrusive use of OneDrive. OneDrive can really mess LrC up. First off, accidentally actually placing the catalog on OneDrive, bad, very bad. But more often, concurrent syncing with OneDrive. The latter can/will slow everything down, especially if OneDrive access is having a bad day. Would advise creating a local account, you do not need to login to a computer using a Microsoft account, and if you do want to access OneDrive, that can be done while logged onto a computer with a Local Account. I am not sayeing that the Microsoft account by itshelf is an issue, I am saying that it invoked OneDrive, and that is an issue (if yoyu really want to use a Microsoft account, their is a way to turn any OneDrive association with LrC off)

https://www.youtube.com/watch?v=pIRNpDvGF4w

Lightroom Classic 13.1 runs fine on my Windows 11.

On my new laptop everything works great, except for lightroom. Lightroom falters and is very slow.

Exactly what actions in LrC do you have problems with? Please be specific. Describe the problem(s) you are having with Lightroom Classic in detail.

Also please show us your system specs, as shown in Help->System Info. We only need the part down to the GPU information; we can't use anything after that.

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut out as that is just so much dead space to us non-Techs and it takes up vast amounts of scroll space making the reply less readable and less likely that others will bother with your post.

" Is lightroom classic compatible with windows 11?"

It would take very little effort to confirm that Lr is supported on Win 11, Joyce - and how to troubleshoot problems:

https://community.adobe.com/t5/lightroom-classic-discussions/lightroom-classic-not-compatible-with-windows-11/td-p/12785694