Engine not running

Wasn’t sure which forum to put this in. Every time I try to play a game made with UDK they run at 3 or 4 FPS. The problem isn’t my computer, I exceed all the specs and other games run fine…its only games built using UDK. Deadlight, Betrayal, Outlast, etc all run at about 5 FPS. It takes me about 7 minutes just to get through the main menu cause things are so choppy. I am running a quad core 3.7Ghz CPU with a Radeon R9 OC with 2GB VRAM and 8GB of RAM. I have tried turning the settings and resolution all the way down for each game and it literally makes 0 difference (aside from things now looking crappy AND being choppy). Any ideas?