Why is my website slow?
Slang needs a stable internet connection for the best learning experience. If you're experiencing slowness on the website, try checking if this is happening in other sites too. Try also login in using a different device and internet connection. If that helps, it might be your device or your current internet connection. Then, try cleaning cache and cookies with these steps:
Note: after cleaning cache and cookies, close your browser and open it again.
Check this article for band with requirements.