I don't know what is different on your system, but my Windows startup experience is that it's blazing fast. Granted, that's on a gaming rig with a decent CPU and it's Windows 10, not 11, but I don't remember having to do any custom de-shittification and it boots way faster than Linux, short enough to not really perceive the boot process as an interruption.
That's funny cuz my Linux boot up is so fast that multiple coworkers and even my girlfriend have commented on how much faster it is than their windows installs.
Linux is blazing fast when configured properly. But in reality we're talking about 2-3 seconds of difference here. How long a machine takes to POST is usually the biggest part of bootup nowadays.