Hi there! It sounds like you're experiencing some buffering issues with Zen Word. Buffering can often be caused by a few common factors like internet connection, app settings, or device performance. Let's see if we can resolve this together.

First, could you let me know if you're having this issue consistently, or is it intermittent? Also, are you using Wi-Fi or a mobile network?

In the meantime, here are a few steps you might find helpful:

1. Check Your Internet Connection: Make sure your device is connected to a stable Wi-Fi network. You can test this by loading a different website or app to see if it works smoothly.

2. Close Other Applications: If you have several apps open, they might be using up your device's resources. Try closing apps that aren’t in use to free up some memory for Zen Word.

3. Restart the App: Sometimes simply closing the app completely and reopening it can solve buffering issues.

4. Check for Updates: Make sure that both your Zen Word app and your OS X version are up to date. To check for app updates, open the App Store on your Mac and go to the Updates section.

5. Reinstall the App: If none of the above steps work, uninstalling and reinstalling Zen Word can help refresh its performance.

Let me know how these steps work for you or if the issue persists!