Experiencing slow browsing in Safari
My Mac was currently on macOS Monterey 12.1
Currently observing slow page loading in websites, slowness to show search results and video buffer issues while watching online videos.
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Safari slow?
If Safari on your Mac isn't working as you expect, one of these solutions might help.
https://support.apple.com/en-us/HT204098
Clear all website data
https://support.apple.com/guide/safari/manage-cookies-and-website-data-sfri11471/mac
Enable Develop menu, click Develop in the menu bar and then Empty Caches from the dropdown twice.
https://support.apple.com/guide/safari/use-the-developer-tools-in-the-develop-menu-sfri20948/mac
Startup in Safe Mode: https://support.apple.com/en-us/HT201262
Login to your account.
Launch Safari and test.
To exit Safe Mode, click in the menu bar and choose “Restart”.
Launch Safari holding the shift key down and test.
Test.