@GNUxeava
MS isn't trying to make Windows slow on purpose. Windows is slow because it's badly designed and bloated as a consequence of decades of backwards compatibility.
And every time they try to overhaul the OS, you have billions of users complaining of "why did you change this! why is my 15 year old software not working anymore! Microsoft REEEEE!!!!".
Microsoft is in a catch-22. The users expect a modern OS, with fancy UI and support for touchscreen, HDR, etc, while at the same time they expect it to still work like Windows XP.
So because you can't get rid of the old stuff, because some of the users will just refuse to use the new Control Panel for instance, you need to keep all of it and add to the bloat. I hear that things have gotten so bad, that current builds of Windows 11 literally have 2 versions of Explorer, one themed for Win11, one themed for Win10.