Regarding Mediatek SoC's

[Henrik]

Oh it's a PowerVR. Yeah, those have a performance problem right now because PSP games like to keep alpha test enabled at all times while it's an absolute performance killer on PVR. I tried before a hack to disable it in some circumstances, got us a lot better speed but also graphics bugs. I have some new ideas on how to detect when it actually would have an effect but haven't implemented it yet.

In short, some speedups for PowerVR are coming, I don't promise a date but reasonably soon I hope.