Hi! First I want to say that this project is really nice! I like the way this is going!
Just posted a bug on the issue tracker https://github.com/nesbox/tic.computer/issues/13
As I said in the issue, when I play a sound on the web version, it starts to lag, and the lag is increased everytime a play a sound. This happens to me on Chrome, Firefox and Opera, with windows 7.
I'm posting this here, because I think it is strange that nobody had the same problem, and maybe is just me?