It was driving me crazy, downgrading to 7.7 finally saved my sanity. Although resync all notes took over an hour, it's worth the time and hassle. Here's how I downgraded mine,
uninstall Evernote, https://help.evernote.com/hc/en-us/articles/208314248-How-to-uninstall-and-reinstall-Evernote
rename two com.evernote... folders in ~/Library/Application Support
download 7.7 from
unzip to Application folder
start Evernote
stop auto-update in preferences