AMD CPU very low performance because IXAudio2SourceVoice::DestroyVoice

Development Audio
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As far as we can tell. (and I will let a coder chime in here)

There are two issues we are seeing.

  1. General low performance on AMD compared to similar spec Nvidia / Intel systems (as you can imagine results vary wildly depending on the specific config)

  2. Very specific massive frame lag / stutter only when voip is active and only on AMD systems.

We did a bunch of specific profiling and may have narrowed #2 down to EQ being used in a specific filter. (this filter seems to exclusively cause the lag in testing) where the normal voip channels do not. (In fact some people have simply deleted the uasset containing the EQ enabled filter and the problem has completely disappeared)

Any leads on why EQ might cause massive frame spikes or stuttering?

We will report back any success with EQ adjustments.