Slow opening of client after recieving a message/notification

When I receive a message on the Windows client and immediately click on Ryver on the taskbar there is a delay (several seconds) before the window actually opens.

I started noticing this recently, I don't think it always happens could be something like only the first message or only some kinds of notifications.

If anyone else has experienced the same problem feel free to add a comment to make sure this is not something only affecting me.

I'm currently using Windows 7 and desktop client Ryver 1.1.6 (Complete Cats).