Running the latest 7.8 on Mac Pro 10.14.2 w/64G RAM + SSD
Evernote is extremely slow w/pinwheeling on any notes containing PDFs. It's so slow as to render Evernote almost useless as a productivity app. Any other app (e.g., office, etc.) is blazing fast.
This problem has persisted for a while - maybe as early as v.7.2. I've done a full and complete uninstall/install.
Evernote is used within my group as a professional productivity app. For years it has been a repository for manu