[curt.clifton]

Originally Posted by mschwarz

Jonathan,
if you tell me that the database is large by Omnifocus standards, then my answer is that I do not know why it increased in size so much: I do not attach files (I just point to them) and I do not sync it with other devices.

When my database was oversized, it took more than 30 seconds to quit on a very powerful machine.

Before taking the more dramatic options, try File -> Rebuild Database. You might also try the File --> Move Old Data to Archive.

That said, using Help --> Send Feedback to contact the support ninjas seems like a good approach.