Lag issues with volume.

Hey, I was just wondering..
when I play without volume, I rarely have lag issues or slow loadings.
But when I turn the Sound FX and Music Volume up, I start to have delay problems and lag, anyone know why? It's been like this for awhile and it never really bothered me until now because I kinda miss the game sounds v.v

Canned:
Please run CoH Helper and HijackThis and post the logs into a reply so we'll know more about your system and might be able to point you in the direction to fix the problem (i.e. conflicting software, outdated drivers, etc).
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If I had to take a guess, it might be an issue with your sound card's drivers.

We've been saving Paragon City for eight and a half years. It's time to do it one more time.