I'm using Sublime Text 2 build 2095 under Gentoo Linux and KDE. For some reason, the rendering of the text buffer is annoyingly slow. In particular, scrolling the buffer exposes some very noticeable horizontal striping, and typed characters take a fraction of a second to appear.
I previously used Sublime 2 under Kubuntu, and it had the normal snappy and crisp experience, so it's most likely a problem with my system's configuration.
Are there any external dependencies that I might be missing? I had to install libpng1.2 in order to get Sublime to start, but I'm wondering if there might be something else that I'm missing that's causing Sublime to fall back to software rendering.