When I'm working with longer notes (all text, but with bullet points if that's relevant), evernote becomes very sluggish. Right now, for instance, I'm working on a note with ~60 lines and there's about a 1-2 second delay between my key strokes and them actually registering. While monitoring activity log, it looks like evernote uses up ~25% of my CPU when it's sluggish. I've had this problem for a few months now. My computer is a Macbook Pro 11,3 so it should have no issues running evernote. I'm running yosemite, but I've had these problems before upgrading to yosemite. I'm using evernote 6.0.3 with premium.