[Brian]

Without duplicating stuff mentioned in previous posts in the thread, one simple thing folks can do for faster access to their data is to open up Settings, open their sync settings, and set Auto-Sync to "Off".

OmniFocus will now just load your existing data on startup, instead of doing a full sync with your server.

You'll need to manually tap the sync button on the toolbar from time to time to send your data to the server, but if you enter a lot of tasks, the tradeoff may be worth it.