Typing slowness has been an issue also for me for the last 6-12 months. I have not seen any improvement since it started. I have been using Evernote Premium since 2008. I keep Evernote always running on my 2012 iMac and 2013 MacBook Air (top models), with the latest software versions. I use Evernote primarily for writing daily logs and saving web clips. None of my notes are very large. At least once or twice per week, keyboard response suddenly slows down, starting with 1-2 seconds delay, and then gradually getting worse, until I quit and restart Evernote. I never experienced this behavior before some Evernote upgrade 6-12 months ago. I have got used to this workaround, but it is annoying when this happens during important meetings. Please continue investigating and fix the issue.