Agreed. Another option is to run the built-in Disk Cleanup tool to clear out old Windows 10 files that might be taking up space and slowing things down. Hope that helps.
Yeah, a clean install can help, but have you checked if your laptop meets the official Windows 11 system requirements, especially for TPM and Secure Boot?
This. You could also try disabling some of the visual effects in Windows 11, as that can free up resources. Another option is to check your startup programs and disable any you don't need.