W10 will live on until end of 2025, that's at least 2.5 years from now and Microsoft may extend EOL further as it did with W7/W8.
I'm fairly certain all W11 perf problems have been solved so that should no longer be an issue. The real issue is W11 usability. W11 does bring quite a bit of improvement over W10, for example file explorer finally has tabs, docking windows to sides of the screen has been greatly improved, it's easier to manage wifi/bluetooth/notifications. New context menu is a mixed bag, I actually find it better than W10, but the problem is that developers need to modify their apps to support it, that's not really on Microsoft, it's on individual app developers. Eventually all apps will start supporting new context menu, although it might take a while, 7zip developer outright said he doesn't care since he's still using W10, so that one will definitely take a while.... But as lots of people have said there are also a lot of negatives in W11, unable dock taskbar on the left side of the screen is a huge negative for me, unable to disable app grouping is also cons, the W11 start menu is a huge step back in usability as well. I have installed W11 on my new laptop to try out, it's fine on my laptop, but I'll stick with W10 on my primary desktop for now, maybe by 2025 Microsoft will fix outstanding W11 issues.