How to Fix ‘Page Unresponsive’ Errors on Windows PC?

Has anyone experienced similar issues with their Windows PC, where certain websites cause browsers to stall or crash with a “Page Unresponsive” error and high CPU usage? I’ve tried clearing cache, updating drivers, and scanning for malware without success. The problem seems specific to my system, as other devices don’t face the same issue. Could this be a bug affecting my system? I would appreciate any insights on fixing this!

Note: link to example site removed by moderator as spam.