Sound Blaster Surround 5.1 Pro - High latency with THX Surround

Hello everyone,
I was comparing the quality and latency of THX TruStudio with Razer Surround but I noticed something that I hadn't noticed before.
It is known that Razer Surround adds latency and its is unavoidable by the way it works, but I wasn't expecting THX Surround to add as much latency!
When THX is disabled, it has no (or almost no) latency, but if I enable it I can easily fell the delay.
I am testing it with CS: GO by going to the menu to create a new bot match and holding my mouse click on one option (casual, for example) and releasing the button. I can compare the sound made by the game with the sound made by my mouse button when it is released.
With THX Surround enabled there is a noticeable delay, with it disabled there is no delay whatsoever.
On my desktop I have one X-Fi Titanium and there is no delay with CMSS-3D enabled.
I am using Windows 7 x64 with headphones. My processor is i7 3610qm.
Am I the only one having this problem? I believe that with this card everything is processed by the CPU, could that be introducing the latency?
Does that happen with cards based on SoundCore3D? (SoundBlaster Z)
Thanks.

Hi,
Generally, an "internal" sound card would have a lower latency as compared to a USB-based sound device.
Cheers,
JL-CL

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