Cycles AMD render view really slow

Hey guys!

So finally got my hands on Blender 2.75 and was super excited that I don’t have to go out to get a Nvidia graphics card!

After updating my AMD drivers I finally got GPU to work, but its really slow, I’m wondering if anyone else is having this problem with AMD cards, and whether there is a way to optimize the performance.

Also not sure if this is common with GPU rendering but whenever I render, it only render one tile at a time, as oppose to 5 tiles with CPU enable.

My pc is running Win 8.1
4gb ram
AMD Radeon HD7700

fyi, I’m really new to blender, just started about 2 months ago, ^^; Any help on the subject matter would be greatly appreciated! :smiley: