tabs stalling

About 50% of the time when I click on something to load in a new tab it loads about halfway then stalls so that I then must hit reload to get the page.

This was happening while I had Avast. I uninstalled Avast (for other reasons) and put in the Kaspersky free trial during which it did not happen. I have now reinstalled Avast and it is now happening again.

I associate this behaviour with Avast.

What can I do to stop it?

for a test…if you turn off webshield…it the problem gone?

Turned off Web Shield, Mail Shield and IM Shield.

Still doing it.