New client sucks.

When i start the client , it has no problem. but when i log in , i'm waiting like 15 minutes to be logged on my account. this is kinda sucks, but all the client is working so bad and i can do nothing about this. i tryed with "initiate full repair" , reinstalling the game , troubleshooting it , but everything was useless. this problem is still there and i can't figure out why does makeing this. i realy need help.