Wireless connection slow/inconsistent after fresh install Ubuntu 14.04 (Realtek RTL8188EE)
This is a problem that I have also been experiencing. To solve it you need to upgrade your kernel manually. I upgraded to 3.14.1 personally.
Here is a guide on upgrading the kernel manually: How to update kernel to the latest mainline version without any Distro-upgrade?
EDIT: I also didn't realise when I posted this, but I have the same wireless card as you, so this should work. I can't guarantee on any other card.