Using Process Monitor, I've noticed that this app tries to read "D:\kde\qt-win-opensource-src-4.4.0\plugins" when I start it. I don't have (and have never had) that directory, so I assume this is a bug.
I have most of my apps installed to C: which is a SSD, while D: is a regular HDD. My HDD is usually idling so whenever I run Speedcrunch my HDD spins up, that's how I discovered this issue.