Laptop for HD Zoom Meetings

i am teacher who recently started teaching over zoom using my white board and markers. I bought a very high end web cam for that but my laptop is i3 7100 CPU 2.4GHZ with 8GB RAM and SSD. When i do zoom streaming, my students see blurry vision of my white board and also the recordings are not of that good quality. Someone suggested that my laptop configuration is weak and not supporting high quality video streaming. Can someone please suggest a good configuration laptop please? I don’t need the laptop with good inbuilt webcam; because I have Logitech Brio which web cam which is the best in the market currently.