Please just wait until a lot more people have gone ahead and installed it. There are tons of bugs that people have been facing after they upgraded to windows 11. It's better to stay safe if you use your PC for work or important matters. If not, then by all means you can go ahead and adventure...
I see the problem. It depends on the situation you are faced with. If your hardware is fairly new, then you really have a problem with windows.
However, most slowing down is caused by a lack of managing your files/ storage device.
I'd say that you need to either manage your files in a better...