If using a Windows computer, look into enabling Tracking settings to help speed up your browsing.
Sites like cnn.com, msn.com, cnet.com and others use a ton of 3rd party Ad sites that can steal CPU and memory from your computer.
See instructions/details here;
https://www.julianevansblog.com/2014/09/how-to-setup-windows-7-internet-explorer-11-ad-blocking.html