Desktop app is almost unusable

Desktop app is almost unusable

We've been working with Nimbus for a year, waiting that desktop app improves its speed, but it has been disappointing that version after version, this is not solved.
You open the app, wait a little, then you change to another note, and spinning wheel appears. 30 seconds. You begin to write... spinning wheel, another 30 seconds. Then two words more, and spinning wheel again. It's impossible to work with the desktop app, you better use website.
Thank you