Very slow and unreliable

I thought I was happy to get MMS and group text support, but I would happily give those up to get the old app back. This newest version is slow to navigate, and extremely slow to update the list of text messages, why cant it sync the messages when it gets notified of a new message, why does it show a new message notification in the banner and app icon, but it waits until I open the app to synchronize, while I wait? Notifications are unreliable, and Missed Calls rarely show up in the Calls list. You get what you pay for I guess.

Marty List about Google Voice, v2.5