I'm using th push mode.
If I start IM+ it takes up to 30 seconds, until IM+ is reconnnected to the IM+ server and loaded all my contacts (~300) from the servers (7 connections are configured). Sometimes it takes longer... Especially if I don't have a high speed WiFi connection but only a slow GPRS connection...
The funny things is, as I use push, the IM+ server is already connected to every server (Skype (okay, bad example, because the connections is very often lost), ICQ, Jabber, Google...).
So please improve here the performance. Use the push protocol to get the current state of contacts (if one is added or not), update the list in background and provide an instant IM+ start, like Skype and WhatsApps provide.