YOu guys know the first time you download that map from the market place its stuck on compiling shaders for like a while?
How long does yours take and whats your PC specs? I upgraded my PC recently to these specs for UE4 development. I had a Pentium G3220 dual core haswell.
I should note all 4 of my cores stick to 100% max usage I assume compiling and rendering uses all the powers of a CPU hence the only situation where AMD can shine? where a software is heavily multi threaded?