Usually when a program is running slowly, it is related to a slowed internet connection. You may want to check with your provider to see if there are any issues that would cause a slower response speed. Otherwise, I suggest that you log completely out, clear cache and cookies, complete a computer restart, and then log back in again using the SAME user id/password.
Clear cookies: https://ttlc.intuit.com/replies/3301745
Clear cache: https://ttlc.intuit.com/replies/3302272
Additionally, I've included a link that will help you troubleshoot other possible reasons for the slowdown here:
https://ttlc.intuit.com/replies/3300294
