Q: Using Google in search bar redirects to Bing!

Are you sure you have done all the steps listed at:

https://support.norton.com/sp/en/us/home/current/solutions/v103415336_EndUserPro file_en_us

to remove the malware?

Verify that your Safari preferences are set properly.

Please read If Safari is slow, stops responding, quits unexpectedly, or has other issues - Apple Support.

Try going to Safari/Preferences/Extensions and disable all extensions. Quit Safari, reopen, and see if the website will now load. If so, enable extensions one or two at a time until you find which extension is causing the problem.