Sound Problem with Tekkit

[xRedPower]

Sorry for my English but I am Italian.

And sorry if this is the wrong section but I do not know where to write.

My problem is that, after a construction tekkit (nuclear power plant for example) if I move away from where it is ... the game starts to lags.

I'm sure the lag relates to the sound because if I turn off the sound lag disappears.

Thanks for reading.

[termhn]

This is a known problem with industrialcraft, the sound code in IC2 is shit. Just mute your sound :/ Sorry.