@szopin vsync does not fix it, not on the N900. I tried all possible settings (vsync=1, vsyncenabled=1 | vsync=1, vsyncenabled=0 | vsync=0, vsyncenabled=0 | vsync=0, vsyncenabled=1) and none of them fixed the speed. Your method to install it seems much faster and easier, though. I'll have to update wiki someday (or someone else do it )