Hi there! I understand that you're experiencing slow account switching in Rise of Castles, which can be a bit inconvenient. Let’s work through this together to see if we can improve the situation.

First, could you let me know if you are playing the game on a computer or a mobile device? Also, have you tried any troubleshooting steps already, such as restarting the game or checking your internet connection?

In the meantime, here are a few steps you can try:

1. Clear Cache and Data:
- If you're playing on a mobile device, navigate to your device settings, find the app under "Applications," and then clear the cache. If you're using the game on a Mac, this option might not be available; however, restarting the app can help.

2. Check Your Internet Connection:
- Make sure you have a stable internet connection. Sometimes, switching to a different network (like from Wi-Fi to mobile data) can resolve issues with slow performance.

3. Restart the Game:
- Simply closing and reopening the game can refresh its performance.

4. Update the Game:
- Ensure that your game is updated to the latest version. Sometimes slow performance can be due to known issues that have been resolved in newer updates.

5. Restart Your Device:
- Restarting your computer or device can also help with performance issues.

Let me know how it goes, and if the problem persists, we can explore more advanced troubleshooting options!