CPU usages on Start Up - Same in Chrome

I'm having the same issue both in Edge and now Chrome. I'm trying to figure out how to solve it so I can switch back to Edge. When I startup the browser it uses a lot of CPU to load 10 to 15%. It stays like that for a couple minutes at least. I couldn't figure out what it was in Edge and now Chome is starting to do the same thing. The longer I use it the longer it uses high CPU. So I figure both of them are doing something similarly. Anyone have any idea what it is and how to fix it?