Quote by AndOrXor:
Hmm, I cant complain but dont forget that lua is lightweight script language, it was not intended to be debugable other ways than printing into log

Yes of course, and you understand that the statement "MFC being a wrapper on WinAPI is significantly slower then the other one" was once relevant now depreciated as hardware got so powerful that the difference became negligible in the face of the benefices gain.
I personally think this starts to be the case of Lua vs C#/Mono.