HUB Loading is Slow
Please follow out troubleshooting steps to see if it helps resolve the the HUB loading issue
For Issues tied to Browser
Clearing cache - How To Clear Cache for All Major Browsers
Using recommended browser - Chrome
Control + F5 - https://www.filecloud.com/blog/2015/03/tech-tip-how-to-do-hard-refresh-in-browsers/#.YwUjmHZOlD8
Control+ Shift + R (load an un-cached version of the site) - https://clear-my-cache.com/windows/google-chrome.html
For Issues tied to Laptop Performance
https://windowsreport.com/improve-pc-performance-windows-10/