Chrome/Safari very sluggish after update

I've recently updated to 10.15.1, and Chrome/Safari are now behaving weirdly. When I open a new tab, and load any webpage it always takes 10-20 seconds to load any page. It just sits at "Waiting for <website>" and displays a blank page.

Has anyone experienced similar things? How this fix this?

submitted by /u/km0r3
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