Do you have a strange label in the sidebar in Gmail called smart_label_root_name? It is a rare problem that sometimes appears for no reason. Remove it using a secret access mode in Gmail.
Windows 10 sometimes has a compatibility problem with the biometric sensors in a PC, such as a fingerprint reader or face recognition, causing high CPU usage. Here is the solution.
What is the best homepage for your website or blog? Static or your latest posts? The choice seems to be one or the other, but you can do both: Show posts in a grid on a static homepage.