Version 1.0.2 is out which partually fixed the lag issues and the music doesn't change itself due to the removal of WinAmp.
1.0.1 and 1.0.2 also have some other bugfixes.
Man, I'm really having a blast with this game! Version 1.0.2 has a really annoying bug where enemies sometimes don't spawn and screen transitions don't work tho.