I have a user of EN for over 4 years. I started having this issues about a month ago. My EN is very close to being useless and there is a tremendous lag and delay in doing anything from opening a new note, old note, typing etc.. This may be related to an upgrade to Yosemite, but I'm on a pretty well-performing mac. I have completely uninstalled it (+ cleared the database) and reinstalled it to no avail. There are many people who have seemed to complain about this. My EN db size was about 700 MB. Did I hit some sort of threshold, where performance degrades due to EN scalability issues? Is there any new insight into the problem? Any help here would be great, else I will switch products to something.